We can't sound like real racebikes but with a Quick Shifter it will definitly feel like one I have a GP Shift Quick shifter for 2003/04 R6, Regular Shift Quick shifter for 2006/07 GSXR 750. They might work on other models, just look em up on the Dynojet website. You need to have a Power Commander in place for these to work. $100.- each due to some confusion about the GSXR with Regular Shift and the R6 with GP Shift both Quick Shifters say PUSH. The GSXR 750 shifter has the numbers 07-3-PUSH on the side and the R6 Shifter says PUSH 4-102. Hope that clears things up some