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Discussion Starter · #1 ·
I just put a Graves slip on, on my 07 r6 that eliminated the valve now my rpm's start fluttering up and down when I try to maintain a constant speed from 4 grand up it gets really bad around 10 very annoying but it doesn't seem to do it while decelerating does anyone else have this problem?
 

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I heart my R6
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I would suggest putting the stock exhaust back on and see if it goes away..removing the exup by putting a different muffler on should make no difference as its a common thing everyone does

I removed my exup set up when i put a slip-on on my bike, and it runs smooth through the entire rpm range
 
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