I am looking for an exhaust for my 400EX. I am wanting one that will give it a pretty good sound and a little power. Let me know which ones are good for what I am looking for and what I wuold have to do to it like rejet or what?
Thanks

 

Look into the FMF fatty pipe at www.rockymountainatv.com you will need the pipe, silencer, and jet kit. (or individual jets)

 

FmF sucks for 4 stroke. Fatty pipe is 2 stroke.

HMF is good.

In a pipe shoot out the white bros E-series made the most power and was only 96dbs so you can use it on the trail. I had the E-series on my ex and it was good.

 

White bro e series hands down... I have 1 on my 01 400ex and i love it. it gave good gains and sounded good but i gutted mine gave it more power and little louder

 

I hear alot about the Big Gun Exhaust too what so you guys think of it? I like the real deep sound in the four strokes so that is the sound that im looking for. My Ex is an 03 if that makes a difference to the information that you guys are giving me? Thanks for the help keep the ideas coming.

 

HMF is the way to go. You will need to jet your quad. Sounds great and increases power.

 

If u are looking for a pipe that makes good power and is cheap that would be the DG Xcellerator Stage 3. If the sky is the limit for the money then i would go with a yoshi pipe i had one on my z400 and it was awesome. and i also have the DG Xcellerator on my EX now.

 

Theirs not much good talk about DG. The new pipes seem good like the bullet nad such but the older ones all are called bad.

If you want a deep sound do this to a E series. Old pic of mine. (copy and past to see pic)

http://i108.photobucket.com/albums/n...990/andy-2.jpg

 

hmf or the curtis sparks big core are the way to go and the esr pro xhaust is good to [img]i/expressions/face-icon-small-wink.gif[/img]

 

I would go for the HMF or LRD pro 4. The HMF is just a little loud if your looking for something not so loud. The LRD sounds good (deep throaty soud) and gives good power.