cutting stock muffler

[orangeEX]

looking through the tip the first set of baffles .
do i leave those in and cut just in front of it ?

some one put me on the right track.

[400eXr1d3rZ]

i posted in your other thread


Originally posted by 400eXr1d3rZ
just get a slip-on, cutting the stock pipe is retarded

[Iliketogofast]

Cut it in half and put a coffee can on the end.

[biff440ex]

I agree


just get a slip-on, cutting the stock pipe is retarded

[Iliketogofast]

If you want to do it just unbolt the baffle and take it out. Then you cut off the scr doeen part with all the insides off. You want it to be empty there. I hope you know you aren't going to get any power from this, just extra noise. It will sound more agressive but not obnoxiously loud.

[DAVE14]

taking out the spark arrestor or baffles as you call it will give it more sound & I found less restriction off idle torque was immediately improved down low through the mid range but top end had no benefit at all , might of even slowed it down a little ,I just got a pipe finally after having a well built 440 for a while now & the only thing I cheaped out on was a pipe until now hopefully Ill feel the difference after rejetting yet again .

[Iliketogofast]

Yeah, I do remember a bald spot near the top of the powerband when I had my baffle out on the 400EX. You do know you can just unbolt that piece and it will sound and look the same as if you cut it, except it can be replaced.

jusk do this i got mega super HP like 13hp!
dont believe me well i beat a 101hp banshee in 1st gear wile i has doing katwalks! :p


http://img162.imageshack.us/img162/3894/dscf00079tq.jpg (http://imageshack.us)


na JK just cut away! and if its crap get a slip on

[orangeEX]

If you want to do it just unbolt the baffle and take it out.

!!!!!!!!! If you have not done this mod do not post
i'm asking for experienced advise. and furthermore the
"spark arrestor" is the tip. the first baffle is about 5 inches
deep from the rear and is riveted. my question was do i cut in front or behind the baffle...
once again if you have not tried this DO NOT give me your
"ignorant" advise.
:mad: :mad: :mad: :mad: :mad: :mad: :mad:

just forget i asked!

[coolex]

wat kinda quad u got

[stc416rider]

i did this to my 400ex and it worked out great

well i didnt take out the baffle bc there isnt one in there but i kinda cut mine on the inside some way and it worked

do you like girls?....

[orangeEX]

Originally posted by stc416rider
i did this to my 400ex and it worked out great

well i didnt take out the baffle bc there isnt one in there but i kinda cut mine on the inside some way and it worked

a Baffle is anything inside a chamber that restricts or redirects
flow. there is a baffle about 5 inches from the tip that is riveted
i was curious if that is what everyone is cutting out!
http://home.earthlink.net/~gellett/exhaust/images/stock_exhaust.gif


so you just cut the spark arrestor off the tip and
cut the muffler short?

[Iliketogofast]

...Yes.

[trx469]

I have a TRX450R and when I first got it and broke it in I cut 9" outta my stock pipe mainly so I could up the jetting from a 118 stock to a 175 main...But it is better to getta slip on cz after getting my HMF it really opened it up and gave it so much more power Id say cutting stock pipe is alright for alil bit but Id save up for a slip on pipe.

[orangeEX]

just got an awesome deal on a white brothers e-series
120 shipped
sorry bout the VENT
just got a little frustrated!

Originally posted by orangeEX
a Baffle is anything inside a chamber that restricts or redirects
flow. there is a baffle about 5 inches from the tip that is riveted
i was curious if that is what everyone is cutting out!
http://home.earthlink.net/~gellett/exhaust/images/stock_exhaust.gif


so you just cut the spark arrestor off the tip and
cut the muffler short?

that pic isnt the same as my stock 400ex pipe.

this is how the pipe looks after you cut past that steal wall. you block all the holes but one and you gain performance.

if you take to much of ur retarded stock pipe idea your not going to have enough back pressue. with not enough back pressure ur going to fry the piston rings then you are going to burn oil . so save your pennies and get a slip on.

[hondarider2006]

Originally posted by yeaman
if you take to much of ur retarded stock pipe idea your not going to have enough back pressue. with not enough back pressure ur going to fry the piston rings then you are going to burn oil . so save your pennies and get a slip on.


Can you please explain to me how its going to cause not enough back presure, and burn up the rings?? Think of what most exhaust systems do....they create a straight-through design.....I don't think they would build them like that if it "burned up rings"

back pressure pritty much just helps with the porformance.

[stc416rider]

you dont need back pressure u jus need it jetted right

[stc416rider]

try this this is wat i did and it worked fine
i got more power for free

[2004exrider]

Originally posted by yeaman
if you take to much of ur retarded stock pipe idea your not going to have enough back pressue. with not enough back pressure ur going to fry the piston rings then you are going to burn oil .

:huh :huh :huh

hows this for a stock pipe:D

[Iliketogofast]

Have you ever seen the inside of a slip on? It's straight through That's going to have more pressure than any aftermarket slipon.

Originally posted by Iliketogofast
Have you ever seen the inside of a slip on? It's straight through That's going to have more pressure than any aftermarket slipon.

you mean less back pressur.

all pipes are streight only ones that arnt are stock pipes and kind of disk type ones too.

if you block all the holes but one the end cap gives back pressur the same way disk type sparkarestors do.

and look up above. quad#7. thats my pipe cut. that shows how one is and what to do

Originally posted by stc416rider
try this this is wat i did and it worked fine
i got more power for free

how did you dril that hole? i tried to drill through it and i couldnt get through that metal. its too strong thats why i cut past it

Originally posted by orangeEX
just got an awesome deal on a white brothers e-series
120 shipped
sorry bout the VENT
just got a little frustrated!

you think you got a deal? i sold a white bros pipe turnt in to a shorty/moded coar for more power and was polished. i sold it for $80 shipped only:eek2

[Iliketogofast]

How exactly do you turn the pipe into a shorty? You can't just cut it off... How did you do it?

Btw about the last post, whoever posed after me said I was wrong and then posted exactly what I said. Must have misunderstood.

[Jayson_406]

My brother has a YFZ 450 and he cut 6 in. out of his stock pipe and welded the end back on and got some bottom and mid power out of it and it cost him nothing.

[Iliketogofast]

Yeah, but that would look stupid (His prolly looked OK, I can't weld very good.) and I don't have a TIG welder. The ones I've seen look like they took the rivets out and cut it then re drilled the holes and put new rivets in.

I can do that, but it will put the pipe either too far from the rear or too far from the header, and I will have to add new pipe to the silencer (And I won't be able to get the same type of metal.)

[Iliketogofast]

Originally posted by not z?
hows this for a stock pipe:D

You're missing your motor.

[Flyin-Low]

His motor must have fell out while he was riding and didnt notice... happens to me ALL the time.

-Martin

[hondarider2006]

Originally posted by Iliketogofast
How exactly do you turn the pipe into a shorty? You can't just cut it off... How did you do it?

Btw about the last post, whoever posed after me said I was wrong and then posted exactly what I said. Must have misunderstood.

Here ya go bro.

Shortening your silencer (http://www.exriders.com/vbb/showthread.php?s=&threadid=42520)

[04'400ex'er]

Originally posted by not z?
hows this for a stock pipe:D How many times have you been banned now kitty???:p

Originally posted by Iliketogofast
You're missing your motor.

you just cant see it.;)

[Quad Dude]

cutting stock mufflers, and putting the money into a piston and cam combo is way smarter. the piston cam will give you tons more power than any pipe will for the same money. this is what i ran untill i got my dmc and now my brother runs it on his ex.

[Quad Dude]

this one is for reference. is a little bit shorter and completly emptyed out. i put the fmf end cap on there so if i ever got caught on public trails it would have a spark arrestor, and it looks cool too. it used to be just a hollow can and even just shortening it that little be gave me a low end gain

Originally posted by Quad Dude
this one is for reference. is a little bit shorter and completly emptyed out. i put the fmf end cap on there so if i ever got caught on public trails it would have a spark arrestor, and it looks cool too. it used to be just a hollow can and even just shortening it that little be gave me a low end gain

you should gring past that wall or grind at least a hole in it to make it flow better

[j21lipp]

I drilled a half inch hole in the back baffel of the stock pipe and it worked ok untill I put a second hole in there. I felt a very, very small increase in topend power but lost drastic amount of bottom end. Got a 450r ehaust with HRC tip on e-bay for $11 bucks. Slapped it on and it runs great and just at 96db.

[muddymulisha]

its stupid to cut the factory exhaust or take the baffle out, the quad is not meant to run that way, if it was they would make it that way, if your going to alter the exhaust, do it right and buy one.

Originally posted by muddymulisha
its stupid to cut the factory exhaust or take the baffle out, the quad is not meant to run that way, if it was they would make it that way, if your going to alter the exhaust, do it right and buy one.


y would they make the spark arestor removeable then :rolleyes:

[hondarider2006]

Originally posted by 89honda 250x
y would they make the spark arestor removeable then :rolleyes:


I might be wrong, but in your manual it says something about cleaning the baffel:confused: That would be my guess as to why they made it so you can take it off.

[muddymulisha]

Yea, they make it removable so you can clean it not leave it out and make your quad sound like garbage.