S&S CYCLE Power Tune XTO? Muffler 550-1044 Polaris RZR XP Turbo 2017 Race-proven velocity-sensitive damping control technology:

Race-proven velocity-sensitive damping control technology: Application specific tuning with different piston flow designs and variable valving specifications

Stainless steel can with exposed tig welds for factory race styling

balancing or splitting the crankcases

Polaris RZR 900 XC Edition EPS 2015

Yamaha YFZ450R 2013

S&S CYCLE Power Tune XTO? Muffler 550-1044 Polaris RZR XP Turbo 2017 Race-proven velocity-sensitive damping control technology:Power Tune XTO? Muffler Tuning inserts allow for easy sound & power adjustment, Improved power and torque, Dual outlet & Stylized tips, Removable spark arrestors, 304 stainless construction, Fits 2 and 4 Seat Models, Meets J335 Forestry Standards, FOR CLOSED COURSE COMPETITION USE ONLY. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES IN CLOSED COURSE COMPETITION USE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE