DescriptionThe RS-4 muffler was developed in conjunction with the Yoshimura Suzuki
Supercross/Motorcross Teams with one purpose in mind: winning
championships. The new RS-4D builds on the
technology that has made the RS-4 a force to be reckoned with on the
racetrack, enhancing it's rock solid performance. By increasing the
amount of open area at the exhaust outlet, the RS-4D increases airflow,
resulting in smoother power delivery and increased throttle control. Testing has shown it offers increased horsepower and
torque throughout the power curve, especially in the bottom to mid RPM
range where riders need it most.
This Full System comes with a titanium header and mid-pipe, Titanium muffler sleeve, Carbon Fiber Dual-Outlet End cap, installation hardware, and detailed
instructions to get you moving!
Titanium Systems come with a AMA Pro Racing sound inserts installed in the muffler.