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R-Sex
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422 Posts
the bike will run fine with or without it. many people here on the forum agree that it was put on there for noise reduction as well. its not a necessity or full exhausts would come with one...
 

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Registered
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54 Posts
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 does anyone else have this problem?
 

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I Eat My R6
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250 Posts
yes, i like the EXUP valve on mine. i too took it off when i installed by GYTR slip-on, i hated it w/o it. the bike had NO BALLS until 5K and until 6K it felt like a 500cc, after that she woke up. i put mine back on for better low RPMs and dont really notice too much of a negative effect up top. or at least enought to where i would take it back off. unless you have a PC and a good map, i would keep the exup on. it does make it quiter but not too much
 
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