Well, I went riding this weekend and I started getting a clunking noise when I downshifted out of neutral taking off. Sometimes it feels okay then the next time it sounds like the gears are going to drop out of the bottom. It also became harder to get it out of nuetral (had to hit the shifter a few times and let the clutch in and out). Anyway, it is under warranty so my questions are: should I pull the PCIII, muffler and filter and put it back stock or leave it on. Also if you take the PCIII off for an extended period will I lose Bo's map? Thanks for the input.