Originally Posted by genes81
My bike didnt like this mod at all..It was louder but the rpms wouldnt get up over 6500-7000..I called the dealer and they told me the only thing they could think of was that they overserviced my engine with oil, or the exhaust control valve was not working and it wasnt creating enough back pressure to make the power....the oil level was fine and sure enough, I put the mods back to stock and it ran like a champ...not sure why it did this, I know the set valve was in the open position, i counted the cycles and I even took off my exhaust to make sure I did it right..oh well!
mine also did this when i tried it and again worked fine when i put it back to normal, still havent found out why yet. just stopped reving half way almost like it wanted to die. i dont know but i am still looking into it i will let you guys know if i figure something out.(07 gsxr 1000)