Rs 4 Header/Canister/End Cap Exhaust System Ss Al Cf

Features:

• Pentagonal-shaped muffler


• Maximized internal volume


• Polyresonant duplex front chamber


• Stepped, two-stage core baffle


• Spark Arrestor/Sound Insert Compatible

Fitment:
Yamaha WR450F 2016
Yamaha WR450F 2017
Yamaha WR450F 2018
Yamaha YZ450F 2014
Yamaha YZ450F 2015
Yamaha YZ450F 2016
Yamaha YZ450F 2017
Yamaha YZ450FX 2016
Yamaha YZ450FX 2017
Yamaha YZ450FX 2018