i wasnt sure how much of a difference this exhaust was going to make, but after taking off my stock exhaust and putting this one on. i was completely satisfied with my purchase. my bike now sounds like a beast.
M4 Exhaust manufactures exhausts which add power and a more race-inspired sound to your bike as well as lowering the overall weight. Extra time on research and development ensures your exhaust has the ultimate in quality workmanship, ease of installation, and the best performance possible for your motorcycle. M4 Exhausts are available in both Standard / Race and GP Series mounting configurations.
Note: All M4 systems are designed and intended for closed-course competition use only.