rkrone
Junior Member
For all you people out there who drilled your stock exhaust---did you notice any performance changes? I drilled my stock exhaust with 3/4 holes, and while the sound did change for the better, I have the strange feeling I lost some performance...just wondering if it's just my imagination playing tricks on me. (the rest of the bike is stock)
Performace from drilling alone - No
Sound - Mild change
(Air box mod will also do mild change)