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has anyone put a fuel controller and exhaust on a 500 efi and did you see any gains , I have been thinking of clutch kit as well as fuel controller and exhaust
 

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Ive got a big gun programmer and full big gun exhaust along with uni filter.....truthfully man idk if ive seen much gains at all....a little snappier low end wise but I think with a cluth kit i'd really notice the difference....ive got ITP Mayhem tires though so Im sure I lost quite a bit because of those.....top end stock was around 60-61mph now im down around 58mph with the tires.

I tried getting mine tuned once but I dont think the guy did a very good job....i'd like to get it done again right and see on the exact gains.
 
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