[kawyams]

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?

 

[xxINKxx]

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