A friend of mine has a 98 GSXL it has a coffmans pipe, moded water box and a rev limiter it wood turn 7450 RPMs all day long now some times the first time out it will turn up but then all it will do is 6200 RPM but still runs great up to that point. The RAVE valves are opening the water valve is shutting off and the exhaust is cleer any help would be great.