I have a 2000 400EX and figured that you guys would know best about what pipe to put on it. Ive looked at Big Gun, DG, Yoshimura, and FMF but really would like some feedback on what you guys have used and liked/disliked. Also, I live at about 7000 feet, and if I jet my quad does anyone know what size jet to use?
I just put a HMF Engineering slip on on my 2000ex and did not re jet it yet and it is totally bad ass!! the only bad thing is that they havent came out with a spark arrester for it yet. It should be done in another month I think they said. This company builds race pipes for street bikes and recenlty got into the atv field with the raptor and the EX. All they pipes are built and tested on a dyno jet dyno and they may be able to hook ya up on the jetting. The price was right ....149.95 and a anodized can is only 20.00 more. The addy is....hmfengineering.com 216-631-6980 ask to speak to Alex