Rs 4 Header/Canister/End Cap Exhaust Slip On Ss Al Ss

RS-4 exhaust systems illustrates the endless cycle of development. Working in conjunction with the factory teams has provided us with new ways to increase performance, lower sound levels and centralize mass. The end result is a product that gives you an unparalleled competitive advantage.
Features:

• Pentagonal-shaped muffler


• Maximized internal volume


• Polyresonant duplex front chamber


• Stepped, two-stage core baffle


• Spark Arrestor/Sound Insert Compatible

Fitment:
2019 Yamaha WR450F
2019 Yamaha YZ450FX
2020 Yamaha WR450F
2020 Yamaha YZ450F
2020 Yamaha YZ450FX
2021 Yamaha WR450F
2021 Yamaha YZ450F
2021 Yamaha YZ450FX
2022 Yamaha WR450F
2022 Yamaha YZ450F
2022 Yamaha YZ450FX
2023 Yamaha WR450F
2023 Yamaha YZ450FX