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View Full Version : What is the best exhaust for a 400 Ex



12-06-2001, 08:59 PM
I dont race, I just ride trails and some open fields. I want it to sound good and give me the all around power gain. Any input will be greatly appreciated. Reply to ojirot@2access.net if you want. Thanks

12-07-2001, 06:19 AM
I personaly havent tried it, but form looking at all of the dyno tests and riding results, I'd say that White Brothers makes the best exhaust for the 400EX. But it isnt cheap, White Brothers likes to put a little bigger price on their products. Also another good exhaust for the 400EX is BIG GUN.

12-07-2001, 07:51 AM
Well anything is better than stock. Any pipe will help,,it's just knowin how to use the power. I run a complete FMF system and it's awesome. Here's what you need to look at when getting a pipe,,any pipe that comes from an engine builder,,LRD, TC racing, Sparks,,is gonna be a MX race pipe that is VERY LOUD. Then you can look at companies that just make pipes,,which normally vary with race pipes and trail pipes,,that should give more HP but not be loud. No matter what pipe you get you 'll get more power,,but do you want a loud pipe,,quiet pipe,,all around pipe,,,how much do you want to spend. Also rejetting and adding a K&N filter will help as much as the pipe...good luck

12-07-2001, 08:00 AM
I dont mind the noise (kinda like it !!!) Im just curious what pipe will give me the best power in all the gears, Ive seen some used pipes in here for sale, someone has a complete DG system for sale headpipe and silencer, do anyone know if Dg is a good pipe or not ? thanks for the replys.

12-07-2001, 08:16 AM
Leave that DG in the classifieds,,you don't want it. I run the FMF powercore IV/2 and the powerbomb header and it gave more power from the bottom of 1st to the top of 5th. My next purchase would be a bills thunder pipe,,,they run about $200. Those new hetrick pipes dont' look to bad either..don't get a DG or a cobra and no matter what you get you'll be happy.

12-07-2001, 08:22 AM
Where do you find one of those pipes, do you want to sell your piipe ? do you know anyone who might want to sell theres ?

12-07-2001, 08:30 AM
There was a guy selling the same exact pipe I have in the classifieds,,FMF powecore. The bills pipe you can get from an add in a dirtwheels mag,,,that's were you'll find the best price. And the hetricks pipe,,,look in the links on this page and you'll see a link to there webpage..

Jekyl_22
12-08-2001, 09:39 PM
What about the Curtis Sparks X-4 and X-6??? In a dyno test on www.atvnews.com (I think it was ATV News???), the Curtis Sparks X-4 added the most HP, but Curtis Sparks claims that the X-6 is even better. Although it may be expensive, its suppossed to add more HP. Anyone have any more info one these two pipes???:macho

Dave400ex
12-09-2001, 01:10 PM
I`ve emailed Sparks may times about his pipes. He said the X-6 is better than the X-4. The X-6 is for highly built motors. He told me it works just as good with the stock motor. You can`t go wrong with Sparks. Rico is right. Any pipe is better than stock. I`m getting the TC because I want TC engine work. I don`t like mixing brands. If I would get a Sparks exhaust I would get Sparks engine work. It`s just what you want.

Chef
12-09-2001, 01:34 PM
get the sparks, im sure it will do better than any extremely large company like white brothers and fmf, since sparks designs their pipes around the engine work they perform

Chef
12-09-2001, 09:14 PM
or, instead of getting Sparks, you could buy an exactly like new big gun full race exhaust from the one and only, HOTT440EX :D $400 OBO been used for one weekend in the sand, hasnt seen mud. no scratches, one little burn mark back where i forgot to put the bracket on the hold the plastic out from it. was cleaned up after this pic was taken.

400MXer
12-09-2001, 10:40 PM
I would go with the Curtis Sparks or the Duncan. I like them both.

I agree with everyone, DO NOT EVEN THINK ABOUT buying DG or Cobra, they give no power at all, just noise. My friend bought a DG because it was cheap, and it was pathetic.

Dave400ex
12-10-2001, 02:36 PM
Sparks.......

Blackguywithouta400
12-10-2001, 03:42 PM
DMC Alien, Just flat out Power

12-11-2001, 11:30 AM
Blackguyona400,
I was wondering the same thing, is the DMC alien the best all-round pipe for a mostly stock motor? I was thinking about the whitebrothers pipe because all I have done so far is a K&N filter. And is the DMC alien very loud?
Thanks

Blackguywithouta400
12-11-2001, 11:47 AM
But the deal is its great for all motors, the full system that is.
I’m going to be going to a 416 here and I think this exhaust is one of the best to me it rates right up there with the sparks system. I think it offers more power and better build quality than the WB pipes, I don’t believe in pipes with disks in them not at all! I would only go with an open system. It is loud but the spark arrestor does lower the sound a little bit. All the shoot outs people brag about that contain this pipe show it being a close second to the sparks pipe I mean within .10ths of Hp. I really don’t care about the noise but I love the system its rally cool looking too. I don’t think there are many users of the system on this list, it is kind of expensive. It has a great lope to when u idle it
:square

honda400exrider
12-11-2001, 04:41 PM
i have a yoshimura comp slip on and it has plenty of all around power and is a little loud but what the hell who cares LOL. this pipe is good looking and power to just wheely, climb or do whatever else you do, good luck!:D

ChadEXer
12-12-2001, 12:05 PM
There aint nutn like a Yoshi!!:D

Nausty
12-12-2001, 04:39 PM
How much is the yoshimura slip on? I was also thinking about the dmc alian but would that be to loud and would it work well with a 416 kit that I might be getting in the future?

TrX465
12-15-2001, 05:55 PM
hey hott i cant wait till i put my 6mm stoker hahahah way past 500cc

Tommy 17
12-15-2001, 06:58 PM
trx465 and hot440 u to have the nutzest 400exs i heard of... 465s and 500cc quads thats just a scary thought to me... i would get killed... all power to yinz man... how did yinz decide u wanted that big of a motor:huh :huh

Chef
12-15-2001, 07:27 PM
it just...well....happened...it started as a 440, then i wanted more, so i stroked it, and now im almost happy. i think i need alcohol, what do you guys think?

TrX465
12-16-2001, 05:54 PM
i had a bunch of motor kits i just moved up

Chef
12-16-2001, 05:56 PM
hey TrX465, what size jets are you running right now with your alcohol?

Juggalo
12-16-2001, 06:23 PM
i don't like the way the yoshi pipe sounds...

Nausty
12-18-2001, 09:32 AM
IT will be a long while before I can even get a slip-on I don't have hardly any money right now.

ChadEXer
12-18-2001, 09:39 AM
Go to Marcums ATV and look up 400EX exhaust and he even claims that Yoshi is the best pipe. Sound awesome and gives the most power and has the best quality and workmanship

Honda Guy
01-03-2002, 05:02 PM
I like Trinity Racings Stage IV Pipe

Dave400ex
01-03-2002, 06:53 PM
TC Racing. I love mine. Worth every penny. Great power increase. Plus when you do motor mods this Pipe will shine even more.

Foxrage
01-03-2002, 07:03 PM
Ya the TC is sweet im trying to deal with a guy to sell me his for cheap or trade me mine for his. I love it i want to get the stock head pipe ceramic coated the heat shield chrome and polish the TC aluminum part that will look really good.

Dave400ex
01-03-2002, 07:12 PM
That would look sweet.

honda400exrider
03-18-2002, 06:52 AM
YOSHIMURA COMPETITION SERIES!
:D