trying to fab dual HMFs

[Pipeless416]

Originally posted by Which 450?
This is one of the best threads ever. someone said they were gonna do something, and actually did it!!! Well documented at the least!!! I cant wait to hear it!!! One of a kind...

thank you. without all the encouraging words i would have lost motivation a long time ago.. this project has led me to many road blocks and has brought on many new projects that i was not anticipating. again, thank you everybody.. heres some new pictures from today.

[Pipeless416]

2

[Pipeless416]

3

[Pipeless416]

polished bumper

[Pipeless416]

i apologize to anybody with a slower connection :p

[exrider12]

wow nice:eek2:

[Pipeless416]

last one

[jcs003]

she is coming along very nice.

[honda400ex2003]

Looks very sweet!!! keep up the good work, steve

[Ruby Soho]

looks sick man, can't wait to see it finished

[Honda#4]

Killer job man

[Pipeless416]

heres some parting shots before i go back to school. the swingarm is getting powdercoated.. most likely satin black like the subframe. i might do something like candy red though.

[Pipeless416]

i was just using my old cylinder to see what i need to do on the header. don't worry, the new one will be painted to match.. possibly molycoated

[Pipeless416]

.

[Pipeless416]

it really is not that far off :eek2: a couple of bends and it'll be pretty close!

[Pipeless416]

this is my official endorsement of mobile1 and rotella t.. hard to see, but the piston and rings look nearly new after four years of hard abuse :)

[Pipeless416]

now i need everybody's opinion. after getting a four stroke tech oil cooler, and a new bumper, i think its starting to look kind of crowded with my ghetto fabulous scoops that i made like 5 years ago. i almost just think it looks cleaner without now. heres the without picture.

[Pipeless416]

heres with.. picture it without my brothers arm in the way. i really can't make up my mind on this one. and thats all for now! i'll get pictures when i start bending again.

[tyman2395]

I think it looks pretty cool with it on it makes the bike look pretty mean but it's your bike so i will let you choose but it looks nice either way. And nice job on the bike. keep up the good work.

[bluetrx]

i say keep the scoops. if not, how much to send them my way?

[Ruby Soho]

not gonna lie, i like it without much better

[jcs003]

keep em they are functional.

[honda400ex2003]

I like em on, and they cool too. Steve

[tri5ron]

I vote for keeping the scoops.
Or you could make a different set.

Of course, if they looked like MY scoops,...
It'd look even BETTER!!!

Haha!, just kidding.
The quads looking good man!
and the left header pipe looks better than I was picturing in my head. keep up the good work, and lay off of the bon-bon's.

Ron

[Pipeless416]

but i love bonbons!

:blah:

[Honda#4]

Being that there smaller in size compared to OMF i'd say keep them on, it doesnt really make it that crowded but it does look rather cleaner without them.

[BlasterEaten250]

Originally posted by Ruby Soho
not gonna lie, i like it without much better I agree, in person it does look much cleaner without them. They look cool when theres not a million different things goin on though

[honda400ex2003]

hows the exhaust coming? steve

[Pipeless416]

ive got some markings on the headpipe for some final bends.. looking to make them this thursday. busy is getting busier with resident assistant training coming up the last 3 weeks in april. once its bent, i will make sure it lines up over eastern weekend.. might need a sort of midpipe there.. as soon as thats all settled, i'll be bringing both pipes back down to weld them shut. my new cylinder is in the shop being bored, honed, and the rings are getting gapped.. i'm also just having them drill and tap the holes for the studs while its there. as you know, i'll be getting new valve springs just to be safe. also, the swingarm, brake stay, and rotor hub were just dropped off to be powdercoated. i'll keep you all posted.

edit: i guess i should start laying off the bon bons :blah:

[tri5ron]

Originally posted by Pipeless416
edit: i guess i should start laying off the bon bons :blah:
:D :D :D your a very busy man Mike, guess we'll have to cut you a little slack :D :D :D

1, maybe 2 bon bons, per day is OK, but no more than that !!!

[honda400ex2003]

agreed. LOL steve

[Pipeless416]

lol i'll work on that Ron. I figured this might be a good time to do a complete modification list. i'll make it in my own format. here goes nothing.

Handling:
Front tires- Kenda Klaw 22x7x10
Rear tires- Kenda Klaw 20x11x9
+2 Burgard a arms
Elka Rec Series shocks
GForce Axle

Body/Controls:
QuadTech Carbon Fiber Hood
Trail Tech Torch Lights
Carbon fiber tank cover
shaved front and rear fenders
Pro Taper SE CR high bend bars
ASV C5 clutch lever
Oury Grips
Powermadd hand guards
AC nerf bars
IMS/Roll foot pegs
IMS/Roll Classic bumper
Ceet seat cover
painted black frame
custom chrome air scoops
powdercoated subframe, swingarm, and other parts

Engine/exhaust:
Powdercoated cases/ Painted cylinder
Custom aluminum airbox
K&N airfilter w/ outerwares
450R carburetor
Hotcam Stg 2 cam
CRF cam chain
Wiseco 11:1 87mm piston
Sparks +6 timing key
Cometic xr400 head gasket
GT Thunder hd head studs
Performance Engineering billet clutch basket
EBC clutch kit w/hd springs
Four Stroke Tech auxilary oil cooler
magnetic drain plug
custom dual HMF exhaust (in progress)

using 15/39 gearing

i think thats it :) i might have to add to it as i remember things..

[honda400ex2003]

WOW nice list of stuff. steve

[Pipeless416]

hello all, just wanted to update you and let you know i haven't forgotten about this project. its just been really busy lately and i haven't been able to get in the lab when i was hoping to. anyway, i just talked to the machine shop owner asking if my cylinder was done yet and he said he hasn't gotten to it.. he got two race car engines and said they take precedence... kinda crappy since im still a paying customer and my stuff was there first, but whatever:rolleyes:. my new valve springs just came in.. so i'll be putting those in soon.

[Which 450?]

holy crap they are huge!

[Pipeless416]

they're all stock haha. the 400ex head utilizes a dual spring setup.

[honda400ex2003]

yeah the small ones go inside the big ones if I am not mistaken right? steve

[honda400ex2003]

yeah the small ones go inside the big ones if I am not mistaken right? steve

[Pipeless416]

correct steve. valves are actually a lot easier than people realize. on the 400ex that is ;)

[honda400ex2003]

i took mine out but when they did the port and polish i had them put them back in. they did some sleaning and lapping for me too. i dont have the tool to get the clip things in the end. it was easy to get them out though, steve

[killer400ex]

Originally posted by Pipeless416
lol it was 9.95.. a little elbow grease and it'll look like my current pipe.. wow how did you pull that off? i have an aftermarket hmf headder and i have been using wire wheels n stuff trying to polish it upp but i think its just going to tarnish over again, how do you keep this from tarnishing? i might just have to use a hi temp black gloss paint if worse come to worse, cause id love to have it look crome

[Pipeless416]

Originally posted by killer400ex
wow how did you pull that off? i have an aftermarket hmf headder and i have been using wire wheels n stuff trying to polish it upp but i think its just going to tarnish over again, how do you keep this from tarnishing? i might just have to use a hi temp black gloss paint if worse come to worse, cause id love to have it look crome

a LOT of wet sanding and polishing. i went all the way up to a 2000 grit sand paper and then polished with mothers mag/aluminum polish. it won't stay looking like that. once you turn it on it starts to tarnish just from the heat. do yourself a favor and don't paint it.. i did that before and when mud bakes on the black paint it stains and looks terrible. just because it tarnishes doesn't mean it looks bad. its still shiny.. just with a goldish tint.

[killer400ex]

so what do you do about your motor and caseing?

[Pipeless416]

the mud doesn't seem to bake on quite as badly on the engine as it does the headpipe. however i did have the cases powdercoated for a reason...;)

[killer400ex]

i was thinking about just having them chromed but then i would have to mess with the pipe connected to the "silencer" -(amplifier) lol, so im kinda caught in the middle, pipe is looking good for you tho, looks like you have some money to throw around. my part time job is barely paying for the gas let alone all the parts i need, sad to say it but its time to sell

[Pipeless416]

Originally posted by killer400ex
i was thinking about just having them chromed but then i would have to mess with the pipe connected to the "silencer" -(amplifier) lol, so im kinda caught in the middle, pipe is looking good for you tho, looks like you have some money to throw around. my part time job is barely paying for the gas let alone all the parts i need, sad to say it but its time to sell

thats the thing, i rarely spend a large amount of money. i do all my own work, a lot of my own painting, and i find deals where i can. i have put much more time than money into building this. chroming would be expensive.. and unnecessary at this point. do what you have to do just to hang onto it. the duals have taken a whole $70 so far haha. i'm a full time student making minimum wage 9 hours a week lol.. cheap is my middle name. :p

[killer400ex]

sounds like me n you would get along pretty dam well

[Pipeless416]

just got back from the powdercoater.. he gave me half off because i bring so much. finally a break!

[Pipeless416]

im definitely liking the red. its a red sparkle.. the girlfriend picked it out.. i was a little nervous at first, but now i think my a arms and hubs will get the same treatment. can't see the sparkle in the pictures, but here ya go anyway.

[Pipeless416]

i also managed to get a new moose 14 tooth sprocket for $4 :) should have plenty of torque when im done with it.

more exhaust stuff tomorrow!

[Honda#4]

Looks good Mike, the GF has good taste in color LOL! The wife decides what gets put on the quad for me, I trained her well lol.

[Pipeless416]

more pictures.. finally got the cylinder thing all settled. heres the completed pictures of the cylinder and studs.

[Pipeless416]

these better not pull lol

[Pipeless416]

i also lapped the valves to get a better seal. this is actually very easy to do yourself. its blurry, but this is valve lapping compound... basically a real gritty paste that is used to grind down the valve seats.

[Pipeless416]

it came out pretty nice.. heres a before and after of an exhaust and intake valve seat.

[Pipeless416]

heres another before and after of the actual valves. the completed valve is on the left.

[jcs003]

did you use dyekem or some type of 'coloring' on the seats to make sure they are actually lapped and not just cleaned?

[Pipeless416]

Originally posted by jcs003
did you use dyekem or some type of 'coloring' on the seats to make sure they are actually lapped and not just cleaned?

nope, its much easier to tell in person than it is from the pictures. i also had a leaky exhaust valve before.. not anymore ;)

[jcs003]

it is cool how it works. did you use the suction cup tool? using the machinist dye (dyekem) is very helpful, that way you can see the low spots.

[Pipeless416]

i didn't use the suction cup tool. i researched it for a little bit on the internet, and came up with a drill and flexible rubber tube method. from what i gathered, this can help to ensure equal grinding, where a suction cup tool can apply more pressure to one section of the seat than the opposite if you're not careful. im happy with the result.

as an update, the engine would have been up and running if i hadn't misplaced two of the valve keepers.. yes, those little tiny pieces that hold on the spring retainers. i had them all taped up so i wouldn't lose them.. well i lost the tape :blah: . as for the pipe, as i kind of figured, its basically impossible to run an in frame route. i almost have the angles i need, so i'm going to cut off the portion that is all bent up and bring it to a custom exhaust place called twisted pipes near me and have them replicate it. heres some pictures of the new rear end colors.. well, still black and red.. just.. nicer :) a arms and hubs are coming down for the same red this weekend.

[Pipeless416]

this has been the most time consuming, wallet killing, and mentally draining build i have ever had.. there will be a rad locknut on there soon. if my piggy bank ever recovers :p

[deathcorefan2]

shoo wee..this little dual project turned into quite the job huh...

[Which 450?]

mike, im starting a project of my own, im gonna make a muffler for my 400ex, I refuse to pay $200+ for one, so im gonna make one. Ill make a thread once my metal comes in.

[Pipeless416]

Originally posted by deathcorefan2
shoo wee..this little dual project turned into quite the job huh...

tell me about it.. lol. i started out just trying to fab duals and replace a blown head gasket.


Originally posted by Which 450?
mike, im starting a project of my own, im gonna make a muffler for my 400ex, I refuse to pay $200+ for one, so im gonna make one. Ill make a thread once my metal comes in.

PLEASE do!!! i love custom fabricated parts and have often thought about making my own silencer. making an hmf replica would be so easy.. and possibly easy to tweak the sound output from it... which was one of my original intentions with my project.

[HONDASALESMAN]

WOW!!! All I can say is WOW!!!

[Kalejime]

send pics whend done!

[ngates788]

that color scheme is sick man.. and that red kinda pops on that black swing arm

[killer400ex]

better get a swingarm gaurd to protect all that pretty paint, not to mention your rotor and sproket, i didnt buy one, i just custom fabbed one out of 1/4 inch steel plating lol, it works so good, those chinsey aluminum ones never last, you hit one rock and ther bent out of shape, the steel one has never dented, it bent once when i landed on a boulder but i just bent it back with some good persuasion and a 20 lb sledge hammer lol

[Pipeless416]

the skid plate is going back on.. no worries. and thanks, i like the red. the hubs and lower a arms are coming down this weekend for the same color.

[Ruby Soho]

any updates?

this thread is the only reason i come back to the 400ex section haha

[Pipeless416]

as far as the pipe routing goes.. no lol. im not calling it quits though. come may 7th, i'll be home and then i'll have a mid pipe mandrel bent. the arms and hubs are being pc'ed red on monday though. if this thread dies for a bit, don't worry. it'll be back :) . i'm wayyy too far into it to just give up. things have just gotten extremely busy in these last few weeks of school.

[Kalejime]

and you are how old?!

[Pipeless416]

Originally posted by Kalejime
and you are how old?!

21?

[jcs003]

Originally posted by Pipeless416
21?

"it was a ver good year"-frank sinatra.

[hondaman146]

Originally posted by Which 450?
mike, im starting a project of my own, im gonna make a muffler for my 400ex, I refuse to pay $200+ for one, so im gonna make one. Ill make a thread once my metal comes in.


Just to give you an idea maybe, most of these aftermarket pipes are made just like a glasspack/cherrybomb for a car which are anywhere from $10-$50

[Pipeless416]

hey guys.. small update. my hubs are ready for powdercoating.. the a arms are going too. everything will get the same color as the brake stay and rotor hub. my SPAL also came today :)

[Pipeless416]

fan

[trailrider894]

did you every finish the duel fab job??

[Pipeless416]

Originally posted by trailrider894
did you every finish the duel fab job??

not quite. i wish i could change the name of this thread to "my rebuild." i'll get back to the pipe on may 7th or 8th when im home. im just going to see if a custom exhaust shop can make that midpipe section for me so its mandrel bent. i'll be able to break it in with the regular HMF then as well, so i'll for sure have before and after sound tests with a decibel reader.

[beags86]

Originally posted by Pipeless416
im just going to see if a custom exhaust shop can make that midpipe section for me so its mandrel bent.

any good custom exhaust shop has a mandrel bender, and should be able to to the job. watch out thou... a quote on quote custom shop may not have the dies for a smaller pipe like you will have.
- i ran custom duals on my Monte Carlo SS after my engine swap. loaded my car on the trailer amd hauled it in to get custom 3" duals. header to tailpipe and i only then learned they didn't have dies to bend 3 inch tube. - this was after i asked them on the phone if they could which they said "yeah, sure can"
i no longer think of that shop as a "good custom exhaust shop"

[scuzz]

NE Updates?

[Pipeless416]

not on the exhaust. thats being put on hold for another week and a half or so when im home from school. i'm picking up my parts tomorrow from the powdercoater. i'll have pics up then.

[Pipeless416]

:D

[Pipeless416]

oh how i wish my phone could show the sparkle

[tman12345]

sickkk:devil:

[Ruby Soho]

can't wait to see your quad finished man

[Pipeless416]

thanks guys. i can't wait to get it running!! burgard is sending my some new chrome stickers for the a arms... for free! im loving their customer service that was once non existent. i'd refer anybody to deal with them now. :macho

[Honda#4]

Damn nice man.

[BlasterEaten250]

hurry up and get done with school i wanna hear duals!!:mad:










:blah:

[woodsracer144]

hey i saw in the one pic a WI trail sticker... where do you all ride there? ever go up north to Flying Eagle?

how has the project been going? i was thinkin about doing this with a crf50 with a 110 in it or something... makin it look like a 250F... nice build!

[Pipeless416]

Originally posted by woodsracer144
hey i saw in the one pic a WI trail sticker... where do you all ride there? ever go up north to Flying Eagle?

how has the project been going? i was thinkin about doing this with a crf50 with a 110 in it or something... makin it look like a 250F... nice build!

thanks for the compliments. we usually end up riding black river falls and clark county the most, except for monroe which is a day or saturday-sunday trip. we've been up to price county before, but thats a good 6 hours north of us. theres a few people in wisconsin/ northern illinois that would be fun to put a group ride together with.

[beags86]

pipless- when your not in school where do you call home?

[killer400ex]

Originally posted by beags86
pipless- when your not in school where do you call home?

sounds more like a personal question to me

[Pipeless416]

Originally posted by beags86
pipless- when your not in school where do you call home?

mchenry. i'm guessing you're towards galena?

nice job. i cant wait to see it when its done:D

[beags86]

Originally posted by Pipeless416
mchenry. i'm guessing you're towards galena?


no freeport, i guess i should change that to central northern il.... i was just wondering because i ride the good old cheese trail.

[Pipeless416]

gotcha, we usually try to head out to darlington and just tent camp in the little campground there on a saturday night, then ride all day sunday.

[beags86]

oh yeah, i never camped anywhere, just do one full day of riding, next time you head up my way let me know i would love to go riding with ya, i want to hear those dual pipes!... i got a few buddys that can go, 7 quads plus my 250r and 400ex

[Pipeless416]

yea hopefully i'll be able to ride there without the constant fear of getting pulled over for the sound level!

[beags86]

Originally posted by Pipeless416
yea hopefully i'll be able to ride there without the constant fear of getting pulled over for the sound level!

yeah i know about that, got a fmf titanium 4. everyone tells me i need a quiet core. they say it's to loud, but i been up there a few times this yr and last and never had a prob yet.

[bergoff]

as long as you keep it down in town u should be ok. i grew up in gratiot and never had any problems. my xr600 with a supertrapp on it with 18 plates and had no issues. and my crf450r with a r4 pipe and none.

[Pipeless416]

Originally posted by bergoff
as long as you keep it down in town u should be ok. i grew up in gratiot and never had any problems. my xr600 with a supertrapp on it with 18 plates and had no issues. and my crf450r with a r4 pipe and none.

haha i think i average like 15 mph when im there just because im trying to keep the noise level down. i guess theres a lot louder than mine out there though. :p hopefully my sound output is cut way down with duals.

[bergoff]

it should be i heard a raptor with duals on it. it sounded awesome. really deep and wasnt to loud.

[stringbean]

Have not been on in a while bro! Damn this thing turned into something totally different huh?
Those pipes still look killer! I like it man. If I ever come up with another R4 I will be in contact with you!

[Pipeless416]

Originally posted by stringbean
Have not been on in a while bro! Damn this thing turned into something totally different huh?
Those pipes still look killer! I like it man. If I ever come up with another R4 I will be in contact with you!

haha yep, i'm still going because it did turn into a full build.. and i'll be looking forward to hearing from you once you get another r4 :cool: heres where i'm at now.

[Pipeless416]

it has a tire back on it!

[Pipeless416]

3

[Pipeless416]

last one. imagine it without all the junk behind it. :o gotta love digging everything out for summer.

[honda400ex2003]

WOW:eek2: That is nice, cant wait to hear it and see it all back together. steve

[Honda#4]

Comin together very nicely, sent you a PM Mike.

[scuzz]

Originally posted by Pipeless416
last one. imagine it without all the junk behind it. :o gotta love digging everything out for summer.


I lol-ed when I saw all the random stuff everywhere in the background because it looks like my garage.

Again, nice work.

[n811]

My girl wouldn't let me work on the quad if those doors weren't on!

[coryatver]

That is a sweet red color

[RaginRedneck]

Looks awesome. Can't wait to here a sound clip.

Any chance you can get a DB level on it when you are done? I would be interested in seeing how much it cuts it down.

[Pipeless416]

yep, i'll be putting a clip with a decibel reader of before and after. burgard sent me some new stickers for my a arms.. 3 sets for free! i was really happy about that. i also picked up a blue L.E.D. switch for my fan, as well as a fuse holder.

[Pipeless416]

heres the switch installed

[Pipeless416]

chrome stickers :)

Originally posted by Pipeless416
chrome stickers :)


looking good!;)

[honda400ex2003]

We want sound, We want sound. LoL looks sick. steve

Man when you're done I definitely think that beast is QOTM worthy. Nice job so far:macho

[knoxville9]

OK well I ride a kfx400 and have never even worked on an ex and my z thread on here was uninteresting at the moment so i got on the ex one and ive went through everyone of your pages and if i could rate you or nominate you for an award i would id give you a 10 outa 10 great thread

[Pipeless416]

thanks guys. i got my fan installed. this thing is powerful! the blue L.E.D. switch might be a little too bright for night riding :p

[Pipeless416]

2

[Pipeless416]

my quad should run pretty cool :blah:

[Pipeless416]

as of right now

[Speedy 400ex]

Sweet! You have like super cooling now..Fan, extra oil cooler. The lighted switch is cool.

+1 on QOTM, you have got my vote.

[RaginRedneck]

Originally posted by Pipeless416
as of right now


HEY! That looks like my garage, only cleaner!! LOL, just kidding man. I've **** tossed everywhere as well. Can't wait to hear a sound clip.

[F-16Guy]

Man, that's dedication right there. You'd have my vote for QOTM even if it looked like it got dropped off a cliff!

[Ruby Soho]

how about that midpipe now:D

[Pipeless416]

ITS ALIVE!:muscle:

[honda400ex2003]

lets see it finished up and running. I cant wait. steve

[Pipeless416]

of course something goes wrong lol. the gas tank has been sitting for months.. must be some crap in there because the float keeps getting stuck open.. always something :p . the initial sound test will come tomorrow. promise. i'll start talking to the exhaust company sometime this coming week.

[honda400ex2003]

nice it never fails to amaze how aggravating some things can be. steve

[Pipeless416]

for anybody that needs to clean out their fuel petcock, this is what you'll find when you take it apart. its pretty simple.

[Pipeless416]

as i mentioned, the float kept getting stuck open because the needle wasn't seating properly in the carb and gas was pouring everywhere. i took the carb apart, blasted out the float needle seat with carb cleaner, and then flushed the tank with kerosene. needless to say, i wasn't about to waste the gas that i had, since it was about two gallons, so i improvised. :cool:

[Pipeless416]

it worked! hard to see because of a crappy camera, but it was full of chunks. my problem was solved!

[400_t-REX]

ok you mechanical genius i am frikkin jealous lol you def have shown some dedication.. hats off to ya!!! and lets see that end result eh...

[Pipeless416]

Originally posted by 400_t-REX
ok you mechanical genius i am frikkin jealous lol you def have shown some dedication.. hats off to ya!!! and lets see that end result eh...

not genius.. just too much time on my hands haha. anyway, finished pictures! minus the midpipe..:o

[Pipeless416]

the cylinder will eventually be painted or moly'd..

[Pipeless416]

3

[Pipeless416]

front.. i guess i have the bottom balljoints in a little too far.. :huh

[Pipeless416]

.

[Pipeless416]

front tires are down to like .3 PSI

[Pipeless416]

top view

[Pipeless416]

oh yea, this thing absolutely hauls now :devil: last picture.. heres the butt shot everybody has been waiting for :) time to start talking to the exhaust company... let me know what you think.

[tman12345]

looks soooo good, i love the way the red and black looks on your quad.

<333333

[tri5ron]

So lemme get this straight.
You start a thread saying your gonna fab your own duals.
Then it morph's into a full rebuild.

30 pages later, you post "completed pics" of the new look.
EXCEPT, it is MINUS ONE PART,...

WHICH BY THE WAY,...
IS THE ONE PART WE HAVE ALL BEEN WAITING TO SEE ! ! !

that you originally needed to fab,...

to make this whole project WORK ???

YOU ARE SUCH A FREEGIN TEASE !!!

come on allready! we are waiting.....
And I REALLY want to see the custom fabbed mid-pipe!
that's what this whole thing has been about!
V
V
V
V
OK, enough of tearing you a new one,
The ride looks sweet.

I just couldn't resist giving you a hard time.

:D :D :D :D

and your Bon-Bon rations have now been completly cut off until we see the mid-pipe, and hear the sound clip.

How ya like Them APPLES ???

[Pipeless416]

:( lol at least the non minimum wage paychecks are going to start coming.. with 40 hour weeks instead of 12 :cool:

[tri5ron]

Sorry pal, but your not going to buy your way out of this one...
we want pics,
we want sound clips,
and we want them NOW.
no excuses!
:blah: :blah: :blah:

[400ex28]

Time for a rear shock and linkage :o looks good though..... just need to hook up the other pipe.......

[honda400ex2003]

you gotta quit teasing us with these pics and such that are not really relevent. WE WANT SOUND AND EXHAUST PICS!!!! Great machine though. steve:eek2:

[Honda#4]

Now thats PRETTY!!!

Wish you could buy my heelguards .

[jcs003]

looks sweet bud...ver symmetric. minus head pipe:blah:

[smelly$cat]

Is that your bubble blowing lawn mower?

--


Originally posted by Pipeless416
last one. imagine it without all the junk behind it. :o gotta love digging everything out for summer.

[BlasterEaten250]

Too bad our camera kinda stinks, it looks so much cooler in person. STOP MAKING MINE LOOK LIKE A PIECE OF JUNK:scary:

[powermadd400ex]

Originally posted by BlasterEaten250
Too bad our camera kinda stinks, it looks so much cooler in person. STOP MAKING MINE LOOK LIKE A PIECE OF JUNK:scary:

:p


she looks awesome mike.

[stringbean]

Dude I am lost... What happened with the Duals? I read back to page 25 (I think) Did I miss something?

[storms400ex]

did you split it into duals after the two headpipes meet??

[Pipeless416]

Originally posted by stringbean
Dude I am lost... What happened with the Duals? I read back to page 25 (I think) Did I miss something?

the duals were put on hold until the engine was up and running again.

UPDATE: I just got back from the exhaust place.. they said it could be really hard to get it to run inside the frame, and a last resort effort would be to run it just outside the frame rail :ermm: . anyway, they guessed that the most it could be is about $200 for everything. i'll be bringing it back in a couple of weeks after i get some other things paid off. :)

[Pipeless416]

Originally posted by storms400ex
did you split it into duals after the two headpipes meet??

nope, there will be pipes running down both sides.

[jcs003]

Originally posted by Pipeless416
the duals were put on hold until the engine was up and running again.

UPDATE: I just got back from the exhaust place.. they said it could be really hard to get it to run inside the frame, and a last resort effort would be to run it just outside the frame rail :ermm: . anyway, they guessed that the most it could be is about $200 for everything. i'll be bringing it back in a couple of weeks after i get some other things paid off. :)

sound like they don't want to do it. it could be done with a couple different bends to go inside the rails.

do you have a shop around that does "custom" exhausts? like a hot rod shop. i have a place close that does exhausts and custom turbo piping...they can do anything.

[Pipeless416]

actually they're the biggest custom exhaust shop around-Twisted Pipes. they seemed pretty eager to get to it and said they could have it done by tomorrow if i left it there tonight.. i just didn't have the money yet. i'm going to check another place tomorrow since we have to bring our truck back there for new exhaust tips anyway.

[jcs003]

Originally posted by Pipeless416
actually they're the biggest custom exhaust shop around-Twisted Pipes. they seemed pretty eager to get to it and said they could have it done by tomorrow if i left it there tonight.. i just didn't have the money yet. i'm going to check another place tomorrow since we have to bring our truck back there for new exhaust tips anyway.

i see. i didn't follow the post. can't wait.

[Pipeless416]

well fellers, it'll be done on tuesday!!!...for $50!!! :D :D :D

[Kalejime]

Good Job...

[Exrider434]

wow.. that looks amazing! Nice to see all the hard work and dedication finally pay off! :macho

[Pipeless416]

got it all ready for tomorrow! the new pipe is packed, riveted, and the header is cut. heres a few pictures.

[Speedy 400ex]

sweet what are you going to do about the hole on the header? Are you going to flush it with the other pipe or just plug it?

We have that same ratchet set to. lol

[Pipeless416]

this will just be capped off and hidden behind a heat shield.

[Pipeless416]

i was worried i'd be burning myself on it, but i think it'll be alright. :)

[Pipeless416]

4

[Pipeless416]

btw, the shop said just have the two ends mounted how i want them, and they'll fill in the gap, running it inside the frame.

[Speedy 400ex]

will it not go down any tighter to the motor?

[Pipeless416]

this should work out!

[Pipeless416]

in the truck and ready to go.. good time to get this done, considering the truck is getting some new tips put on tomorrow as well. i also have some video of this thing running with the single pipe. the video shows the standard procedure for testing sound levels on atvs. mine ran about 98 dbs with the quiet core and good packing. i was hoping it was quieter than that, but that is also with a 450r carb, k&n filter, and an open air box... all of which increase sound output. once its all finished i'll put together a video of before and after, along with some of the pictures from the past 5 months. now.. time to order another quiet core!

[Pipeless416]

Originally posted by Speedy 400ex
will it not go down any tighter to the motor?

it could, but then i will run into more alignment issues. it should be plenty out of the way even when its pieced together. i just need to somehow route the crankcase breather around, and switch the idle adjustment to the other side.

[tri5ron]

lookin' good Mike,
Your starting to redeem yourself.
You may now have 3 bon-bons,...
Happy Memorial Day !

[deathcorefan2]

looks sweet! GET IT DONE!!!!
im so anxious to see it done.

[Pipeless416]

Originally posted by deathcorefan2
looks sweet! GET IT DONE!!!!
im so anxious to see it done.

roger that. :devil:

[Pipeless416]

this will have a heat shield covering that capped off part

[Pipeless416]

3

[honda400ex2003]

looks good man. great work, steve

[Pipeless416]

as for a sound report.. never heard anything like it haha. its incredibly deep without quiet cores.. and QUIETER THAN BEFORE :) once i get the other quiet core i'll have video up with a sound reading. I. AM. DONE.

[jcs003]

how does the power feel?

[tri5ron]

Originally posted by Pipeless416
as for a sound report.. never heard anything like it haha. its incredibly deep without quiet cores.. and QUIETER THAN BEFORE :) once i get the other quiet core i'll have video up with a sound reading. I. AM. DONE.
It's NOT Done, until the "Fat Lady", (or in this case,.. the new Duals,...) SING!!! LOL!
Looks Good Bud, Cant wait to hear it with Dual QC's.
Great Job!

[81-Honda-04]

Nice Job! cant wait to hear em!

PS- should your name still be pipeless? lol

[Pipeless416]

Originally posted by jcs003
how does the power feel?

power feels about the same. jetting feels pretty close as well. they are just much quieter than the single without the quiet core. i can't wait till my new qc comes in.. probably friday. until then, i have a sound clip uploading on youtube as i type this. the actual sound level isn't as high, but these things RUMBLE :eek2:

[jcs003]

you should "pretty" it up with some nice exhaust wrap...

or get the headpipes chromed. That would be amazing:eek2:

[0101]

Originally posted by Pipeless416
power feels about the same. jetting feels pretty close as well. they are just much quieter than the single without the quiet core. i can't wait till my new qc comes in.. probably friday. until then, i have a sound clip uploading on youtube as i type this. the actual sound level isn't as high, but these things RUMBLE :eek2:

link plz lol

Nice work bro

[honda400ex2003]

i think the wrap would be nice since you would not have to get them completely smooth where the welds are, since the wrap is thicker and does not show anything under it. Steve

[Pipeless416]

Originally posted by 81-Honda-04
Nice Job! cant wait to hear em!

PS- should your name still be pipeless? lol

probably not lol. my brothers name is still blastereaten250.. so im still +1 on him :) .

here ya go guys.. 5 months later.
<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/dd1R7BRmFas&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/dd1R7BRmFas&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

[Pipeless416]

Originally posted by honda400ex2003
i think the wrap would be nice since you would not have to get them completely smooth where the welds are, since the wrap is thicker and does not show anything under it. Steve

they will definitely be getting wrapped someday. the cylinder also needs to be moly'd or painted still..

ps- youtube absolutely kills the sound quality. :scary:

Originally posted by Pipeless416
they will definitely be getting wrapped someday. the cylinder also needs to be moly'd or painted still..

ps- youtube absolutely kills the sound quality. :scary:

Dude that sounds sick when you open it up!!

Upload it on vimeo, that way we can hear it better. (vimeo is much better than sucktube)

[beags86]

god i am going to sound like a d**khead here. but who welded that??. those welds are god awefull!!!! please take the grinder to that pipe and clean up those welds!!! your quad is awesome man and the dual pipes are an awesome idea, and sound great but those welds suck. also it would look cool to get another heat shield and mount it on the other side to pull in both sides and make it nice and symmetrical up front as well as out back.

man if i would have known i would have tig welded that pipe for free!- all you would have had to do is drive the hour & 15 to my house.

[Pipeless416]

Originally posted by beags86
god i am going to sound like a d**khead here. but who welded that??. those welds are god awefull!!!! please take the grinder to that pipe and clean up those welds!!! your quad is awesome man and the dual pipes are an awesome idea, and sound great but those welds suck. also it would look cool to get another heat shield and mount it on the other side to pull in both sides and make it nice and symmetrical up front as well as out back.

man if i would have known i would have tig welded that pipe for free!- all you would have had to do is drive the hour & 15 to my house.

i know they're terrible haha. i actually had an exhaust shop do it.. problem is that with the bend that he had to make, he had to leave the pipe mounted while he welded it. im going to grind, then wrap lol. i'm still happy for $50.

[beags86]

i am a welder by trade. heres how i would have done it.
bend the pipe up and test fit it, when i was happy with the fit i would have tacked it in place, checked the fit to it and make sure everything was good to go, then go back and run a few small beads of weld or enlarge the tack welds. then take the whole pipe off the 4 wheeler and burn it in. the since it's out for the world to see that is something i would metal finish.

i understand the exhaust shop thing. most guys that work in a exhaust shop can weld good enough for what they do, but are not good enough fabricators to make it in a real weld shop.
(sorry if i'm offending anyone, just my opinion, based upon what i have seen)

pipe- if your happy with it and don't mine the clean up or the 50 bucks then who cares i won't

ps. still should get another heat shield

[Ruby Soho]

thats awesome.. great job man! now i have no reason to come back to the 400ex forum:scary:

i think a heatshield on BOTH sides would look cool..

[Pipeless416]

here ya go dmc. now i just need a new camera lol. this definitely still does not do it justice. <object width="400" height="300"><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="http://vimeo.com/moogaloop.swf?clip_id=4857048&amp;server=vimeo.com&amp;sho w_title=1&amp;show_byline=1&amp;show_portrait=0&amp;color=&amp;ful lscreen=1" /><embed src="http://vimeo.com/moogaloop.swf?clip_id=4857048&amp;server=vimeo.com&amp;sho w_title=1&amp;show_byline=1&amp;show_portrait=0&amp;color=&amp;ful lscreen=1" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="400" height="300"></embed></object><p><a href="http://vimeo.com/4857048">Untitled</a> from <a href="http://vimeo.com/user1813719">Mike Kranz</a> on <a href="http://vimeo.com">Vimeo</a>.</p>

[Speedy 400ex]

It does sound awesome. Yep i think the dull heat shields would be cool. What if you made some out of carbon fiber sheets?

[400ex28]

That guy who welded that should be fired haha... it looks badass man good job on it. :macho

[racer 557]

good job dude did that quiet it down or what did it do compared to the 1 hmf

[Pipeless416]

thanks guys. its a good bit quieter than the single pipe.

[storms400ex]

sounds alot quieter then a single

[storms400ex]

sounds alot quieter then a single

[fishnfergie]

Edit :Never mind I found the answer.

[Punkmaster Flex]

Originally posted by storms400ex
sounds alot quieter then a single


Originally posted by storms400ex
sounds alot quieter then a single

Dual posts in the dual HMFs thread huh. ;)

[Pipeless416]

just wanted to let everybody know that i got the other quiet core today.. im actually amazed at how quiet it is. it still roars when the throttle is held open, but just cruising around.. very quiet. success :cool: i'll get a db reading tomorrow asap.

[krt400ex]

looks sweet dude. im envious

[mxer346]

That's BadA** nice work

[Pipeless416]

i also put this up in the open forum, but heres a video and slide show of everything strictly exhaust related so you can see the project progress without going through 30+ pages of random stuff
<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/ZUxG5g3jsIo&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/ZUxG5g3jsIo&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

[beags86]

where's the quiet core db test??

[400exrider707]

Awesome job on the duals!

I want to say one thing that no one else seemed to pick up on since I just went through all 36 pages...

Your burgard arms... you said you had the lower balljoints in too far. Lower joints should ALWAYS be ALL the way in! If you unthread them out at all, you're just adding stress to them. All adjustments should be done at the top for camber.

Also if you didn't already know, that design of arm is very weak. They use the same balljoint top and bottom and they were never meant to hold up to the abuse that the shock will give it. My buddy flipped over two or three times in one MX season cause of those. If you do decide to keep them, replace those lower joints often and keep an eye on them. They're 69 VW bug tie rod ends from advanced auto. ~$15 a piece.

[Pipeless416]

Originally posted by 400exrider707
Awesome job on the duals!

I want to say one thing that no one else seemed to pick up on since I just went through all 36 pages...

Your burgard arms... you said you had the lower balljoints in too far. Lower joints should ALWAYS be ALL the way in! If you unthread them out at all, you're just adding stress to them. All adjustments should be done at the top for camber.

Also if you didn't already know, that design of arm is very weak. They use the same balljoint top and bottom and they were never meant to hold up to the abuse that the shock will give it. My buddy flipped over two or three times in one MX season cause of those. If you do decide to keep them, replace those lower joints often and keep an eye on them. They're 69 VW bug tie rod ends from advanced auto. ~$15 a piece.

thanks for the input. i don't really jump a whole lot or anything, but i always have heard they are weak. i think there is a heavy duty replacement that i can get.. i'll look into them. thanks for the compliments.

[scuzz]

nice follow up.

Are you going to grind down those "welds" :D?

[400exrider707]

Originally posted by Pipeless416
thanks for the input. i don't really jump a whole lot or anything, but i always have heard they are weak. i think there is a heavy duty replacement that i can get.. i'll look into them. thanks for the compliments.

I've heard of some guys drilling the arms out to accept the larger balljoints, but then the arm is just really weak. Burgard does sell heavy duty arms, but you cant "graft" them on to what you have. Pretty much stuck with them. Either way just wanted to make you aware if you didn't already know, but it seems you knew. Awesome job on the build!

[81-Honda-04]

grind down those welds and get some heat guards. QOTM:macho

[Pipeless416]

well, it ran about 92-93 dbs today!

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/4CMI_GNHOOA&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/4CMI_GNHOOA&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

[bigd's ex]

Mike,

Good to see that you got your bike finished. I've followed your thread from start to finish & would like to say " CONGRATS " on a job well done !!!!!!!!!!!!!! Nice to see you stuck with it and had the patients to overcome the the obstacles that got in your way. Lots of guys would have gave up a lond time ago after hitting a few bumps in the road, but you hung in there & finished what you started. I think the duals turned out great. " NICE JOB "

Where did you get the db meter if ya don't mind me asking ? I have the 2Brothers m7 v.a.l.e with 3 different tips. I'd like to know what db's there puttin out.

[Pipeless416]

Originally posted by bigd's ex
Mike,

Good to see that you got your bike finished. I've followed your thread from start to finish & would like to say " CONGRATS " on a job well done !!!!!!!!!!!!!! Nice to see you stuck with it and had the patients to overcome the the obstacles that got in your way. Lots of guys would have gave up a lond time ago after hitting a few bumps in the road, but you hung in there & finished what you started. I think the duals turned out great. " NICE JOB "

Where did you get the db meter if ya don't mind me asking ? I have the 2Brothers m7 v.a.l.e with 3 different tips. I'd like to know what db's there puttin out.

thanks for the kind words! the db meter came from radio shack.. i'm sorry i can't tell you the price because my dad bought it, and it was a few years ago. seems to be pretty accurate though.

[bigd's ex]

Originally posted by Pipeless416
thanks for the kind words! the db meter came from radio shack.. i'm sorry i can't tell you the price because my dad bought it, and it was a few years ago. seems to be pretty accurate though. Never thought of Radio Shack, Thanks

[tyman2395]

i wanna do this to my 460 setup. I might try it sometime in august. but with 2 WB pipes

[Pipeless416]

good luck. let me know if you need anything :) heres an updated picture..:devil:

[tyman2395]

man that looks nice i was wondering if a 450r headpipe would fit in the 400ex exhaust port because if it did i would prob buy 2 off them and run them back then make some mid pipes up,,, just a thought

[Pipeless416]

i think 450r headpipes are quite a bit larger in diameter, and i'm sure they wouldn't fit the exhaust ports.

[tyman2395]

crap that wouldv'e been cool if they did but owell i will have to try some other header pipes out lol

Hey Mike, did you ever talk to HMF? I'm curious as to see what they think about it. It's definitely pretty sick.


Tyman, if you can find them, DMC Alien headpipes would work. They are seperate all the way back to the canister, and there's one for each exhaust port. I actually thought about putting one on the other side and fabbing up dual silencers, but never did.

Check out the headers.

[tyman2395]

thanks man for the next few weeks i will be looking for a set off them so i can start this project

Originally posted by tyman2395
thanks man for the next few weeks i will be looking for a set off them so i can start this project

Sounds like it'd be cool. But good luck finding the headpipes, the whole exhaust is almost impossible to find, nevermind just the headers lol.

[sandalanalyst]

you could put the 450 pipes on... nothings impossible, not saying you said it was, but... if you had a stock set.. and the 450 set... cut and weld the piece that goes into the motor.. then the diameter dont matter, would actually probably be good if you got like a 460 or something... more flow? or even have your head cut to fit the 450 header right in.. by a machine shop.. or if you have the equipment... just a thought... but isnt the whole reason for boring.. porting... polishing.. jetting.. exhaust.. valves.. longer lift and duration cams.. all for more and smoother flow? wonder if you could have the ex exhaust outlets cut to fit 450 headers.. if they're bigger.. wouldnt it give you more air movement.. if you had some good mods already....hmmmm

[bkelley]

Bumping this because I just read through the whole thing and it's pretty amazing. Awesome, awesome job on the whole bike.

Also, did you powder coat those wheels or do you buy them black?

Originally posted by sandalanalyst
you could put the 450 pipes on... nothings impossible, not saying you said it was, but... if you had a stock set.. and the 450 set... cut and weld the piece that goes into the motor.. then the diameter dont matter, would actually probably be good if you got like a 460 or something... more flow? or even have your head cut to fit the 450 header right in.. by a machine shop.. or if you have the equipment... just a thought... but isnt the whole reason for boring.. porting... polishing.. jetting.. exhaust.. valves.. longer lift and duration cams.. all for more and smoother flow? wonder if you could have the ex exhaust outlets cut to fit 450 headers.. if they're bigger.. wouldnt it give you more air movement.. if you had some good mods already....hmmmm

Exhaust manufacturer's design exhaust's with mods in mine. They're tuned to work best with the 400ex.

The Curtis Sparks big core X6 is pretty damn big.

[Pipeless416]

Originally posted by bkelley
Bumping this because I just read through the whole thing and it's pretty amazing. Awesome, awesome job on the whole bike.

Also, did you powder coat those wheels or do you buy them black?

thanks! sorry you had to read through all that :p. the wheels were painted a year and a half ago.. they've held up since. a lot has changed since this thread :devil:

[jasonwayne222]

what kind of difference in power did u notice compared to before.

Ur adding more back pressure right so shouldnt that slow u down a bit Im sure yall covered this but i dont feal like searching thru 50 pages

[bkelley]

Originally posted by Pipeless416
thanks! sorry you had to read through all that :p. the wheels were painted a year and a half ago.. they've held up since. a lot has changed since this thread :devil: At first I was just wanting to see the finished fab, but then I got caught up in the whole thread hahaha. It's all good, it was a cool read.

What did you paint the wheels with?

[Pipeless416]

Originally posted by bkelley
At first I was just wanting to see the finished fab, but then I got caught up in the whole thread hahaha. It's all good, it was a cool read.

What did you paint the wheels with?

thanks again. the wheels were done with rustoleum. here's the thread i made- http://www.exriders.com/vbb/showthread.php?s=&threadid=353129&highlight=surprised+myself




Originally posted by jasonwayne222
what kind of difference in power did u notice compared to before.

Ur adding more back pressure right so shouldnt that slow u down a bit Im sure yall covered this but i dont feal like searching thru 50 pages

if anything, i gained a little top end without losing anything in the lower range. i'm not sure why you're saying i added back pressure..? stick a straw in your mouth and exhale.. now stick two straws in your mouth and exhale..

[jasonwayne222]

ya i guess so, well was it worth it, i have my old headers and all i need is another muffler, but i dont want to spend a couple hundred dollars buyin it if it aint worth it

[Pipeless416]

Originally posted by jasonwayne222
ya i guess so, well was it worth it, i have my old headers and all i need is another muffler, but i dont want to spend a couple hundred dollars buyin it if it aint worth it

a used, crap silencer.. $60

an extra header since you need to use the same pieces..$20

time and effort.. a lot

knowing that you have the only setup like it.. priceless

[bkelley]

Originally posted by Pipeless416
[B]thanks again. the wheels were done with rustoleum. here's the thread i made- http://www.exriders.com/vbb/showthread.php?s=&threadid=353129&highlight=surprised+myself
Just regular ol' paint, eh? I'm in the same boat you where. I want black wheels, but I'm saving up my cash for some 450r shocks and new arms. Powder coating all four would cost me $100... I was thinking about going the spray-on bed liner route, but I don't really want a textured finish. Also wanting to paint my hubs red like yours.

[Pipeless416]

Originally posted by bkelley
Just regular ol' paint, eh? I'm in the same boat you where. I want black wheels, but I'm saving up my cash for some 450r shocks and new arms. Powder coating all four would cost me $100... I was thinking about going the spray-on bed liner route, but I don't really want a textured finish. Also wanting to paint my hubs red like yours.

yep, but it's more about the prep work than the actual paint. plus, black is easy enough to touch up if you need to. i had the same feeling, that the bed liner would either stain or just fade to gray. paint fades, but thats alright.. it works till i get OMF beadlocks..someday:o :p

nah, its pretty easy to clean. ive done my valve cover,heat sheild,clutch cover.subframe,and my bumpers in it. it hold up very well. doesnt faid or stain. im pretty happy with it for 8 buxs a can. :blah:

[paganmac_10]

Man what a read..... Took me like 2 something hours last night, with slower then dial up internet... I HATE BEING IN IRAQ! lol, Lots of good info tho, got a few ideas for my own quad from this..... Looks and sounds great man!

[Pipeless416]

Originally posted by paganmac_10
Man what a read..... Took me like 2 something hours last night, with slower then dial up internet... I HATE BEING IN IRAQ! lol, Lots of good info tho, got a few ideas for my own quad from this..... Looks and sounds great man!

thank you in more than one way. :)

[Thumpin440ex]

Awsome read, I read through just about all the pages.. Good work man. When I first joined I saw your avatar, was like wtf, then saw a pic of your bike, was like they don't make dual HMF kits.. Then I ?? myself, searched for it, yah they def don't.. Bad *** for sure... BTW your engine, is that just spray bomb also?? If so what brand?? Thanks, props to ya :D


John

[Pipeless416]

thanks for the compliments. as far as the engine goes, the top end is painted and the bottom end is powdercoated. i believe i used duplicolor 2000 degree engine enamel.

[Pipeless416]

funny that this thread came back.. i was contacted by the chair of the eastern illinois university school of technology and he wants me to present this project as a representation of the SoT.. :)

[MidnightBlade]

i saw the truck bed liner thing and figured it put in my .02 and say that im VERY HAPPY with the way my frame turned out it holds up to a hammer and shovel very well

[racer 557]

hey pipeless i need to ask you something


i wanna try to make custom duals for my 04 450r and help on how to make the flange to divide it

reason for doing is no one else has it and i can do a quick change for flat track by doin straight

[Pipeless416]

fabricating duals for a 450r is going to be a completely different ballgame. it could be done if you really wanted it though. i would run one stock pipe, take another pipe and cut the curved part that comes out of the head off and tig weld it to the existing pipe after cutting a hole in it. i'll try to give you a very very basic picture of what im picturing. it kind of looks like a butt, but you get the idea. im not sure if it would clear the fan or anything.. just throwing it out there.