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The YOSHIMURA RS-4 Header/Canister/End Cap Exhaust System is designed for the 2018 and 2019 Yamaha YZ450F. This exhaust system features a pentagonal-shaped muffler with maximized internal volume, providing a purpose-built configuration for the specified motorcycle fitment.
The system incorporates a polyresonant duplex front chamber and a stepped, two-stage core baffle. It is also compatible with a spark arrestor or sound insert. Manufacturer part number: 234820D320. Vendor part number: 234820D320.
Features:
- Pentagonal-shaped muffler
- Maximized internal volume
- Polyresonant duplex front chamber
- Stepped, two-stage core baffle
- Compatible with a spark arrestor or sound insert
- Fits 2018 Yamaha YZ450F
- Fits 2019 Yamaha YZ450F
Fitment:
2018 Yamaha YZ450F
2019 Yamaha YZ450F