M4 spends extra time on research and development to ensure your system has the ultimate in quality workmanship.
M4’s unique silencer packing gun insures even distribution of packing material to help unleash that deep powerful exhaust note your bike was meant to have.
All systems are manufactured from the highest quality stainless steel, carbon fiber and titanium when applicable.
Unleash that deep powerful exhaust note your bike was meant to have.

Note: this M4 dual Slip-On exhaust retains the catalytic converter