Description
*NOTE: Titanium Full System Shown for Display Purposes.
The RS-4 muffler was developed in conjunction with the Yoshimura Suzuki Supercross/Motorcross Teams with one purpose in mind: winning
championships. That goal was accomplished during the 2010 AMA Supercross
and Motocross season, as Ryan Dungey and his Yoshimura powered RM-Z450
shook the motocross world by being the first rookie in the history of
the sport to dominate both series. 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, Carbon Fiber muffler sleeve, Carbon Fiber Dual-Outlet End cap, installation hardware, and detailed
instructions to get you moving!
Titanium Full Systems come with a AMA Pro Racing sound inserts installed in the muffler.
Low-Volume Insert and Spark Arrestor Chart
