I'm looking for a decent map for my '05 SV 650S. I have a Yoshimura Tri Oval full system with a k&n filter. I can't see paying someone to do the map for me. I currently have a map from the PC site that says it's for a Yoshi full system but my bike is starved for power and constantly backfires when downshifting. I actually lost like 10mph off my top speed after installing the all the performance parts! Please help!!!!