i Have the R6 header mod and it works just fine...i used a scorpion oval slipon just to mock things up...i love riding my bike and it sound amazing now that i cleaned my injectors and got all the cruddy winter fuel out...i also have the PCV and got it customed tuned...put 82 wheel hp on the best run...averaged 78 to the wheel...as opposed to the 63 wheel hp stock...so it was about a 10hp increase
