Ducan Fatboy 4
#1
#3
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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.
#4
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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.
#6
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<< 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. >>
i think they gave you a 440 kit by mistake...
#7
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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
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