Has anyone tried this. I am in the market for a new system, I HATE MY FMF. I kind of wanted something different rfom what everyone else uses. No I don't know why.

 

Why do you dislike the fmf setup?

 

It has absolutly NO top end at all. I think when I switched to it from my stocker I lost a little on top speed. This was before the filter and jetting so I do have more on top now but at first I don't know. I hear about people talking about how much gain they got from CT or Graydon and I just don't think I get it from mine.

 

I am running a Duncan Fatboy 4 complete system. I added a K&N air filter and new jetting. The power increase is awesome. I am almost as fast as my buddies Raptor. He still has me beat on the top end but before he really was fast. He is maybe 2 or 3mph faster now. NOT MUCH. HIGHLY RECOMMEND DUNCAN FAT BOY 4. Let me know if you need any help with questions.

 

Have you tried any other pipes or raced another 400 with maybe a W Bros?

 

<< I am running a Duncan Fatboy 4 complete system. I added a K&amp;N air filter and new jetting. The power increase is awesome. I am almost as fast as my buddies Raptor. He still has me beat on the top end but before he really was fast. He is maybe 2 or 3mph faster now. NOT MUCH. HIGHLY RECOMMEND DUNCAN FAT BOY 4. Let me know if you need any help with questions. >>



i think they gave you a 440 kit by mistake...

 

hey ward have you seen the new muzzy for the raptor. i have not seen any #s but if they do anything for an atv like they do for sport bikes....www.muzzys.com