I don't want to sound dumb, but I got to ask this. Since I just bought this thing (07 zx6) I don't have much feedback from it. I've ridden my 07 GSXR for a year and I know a lot more about gixxers then kawis. Anyway, I've heard that there is a "exhaust bridge" mod that, supposedly, dealer can do for you to iprove HP up to +8 (yeah, right). Anybody else heard about this? I know guys that removed exhaust servo motor on their gixxers, giving them more ooomph without loosing back pressure.
The purpose of it is to close a little flap on exhaust at low RPM to maintain backpressure and open it up at high RPM to obtain more HP. I am not a big mod guy but I am also not a big spender - no point to spend big $$$$ on exhaust and PCIII's if you can add a little juice to your bike by removing some stock chit.
Anyway, anyone out there with 07's or some knowledge - I appreciate any imput.