The Pro Circuit 304 Silencer is designed for most two-stroke applications and is a recommended performance replacement for the 2019–2025 Yamaha YZ85. Manufacturer part number 1031985, this silencer uses a slightly longer body than the Pro Circuit R-304 model to help reduce exhaust noise while maintaining the performance characteristics expected from a high-quality two-stroke exhaust system.
Constructed with a brushed aluminum body, stainless steel inlet tube, and stainless steel end cap, the Pro Circuit 304 combines durability with a clean, professional appearance. Its design supports reliable use in motocross and off-road riding environments while complementing the fit and function of the Yamaha YZ85 platform. This silencer is built to work with a Pro Circuit pipe as specified by the manufacturer.
Fitment: Fits 2019, 2020, 2021, 2022, 2023, 2024, and 2025 Yamaha YZ85 models. The Pro Circuit 304 Silencer is intended for use with the applicable Pro Circuit pipe. Refer to the pipe and silencer application requirements before installation to confirm compatibility with your exhaust configuration.
Features:
- Application: Recommended Pro Circuit 304 silencer for most two-stroke engines
- Fitment: Designed for 2019–2025 Yamaha YZ85 models
- Noise Reduction: Slightly longer body helps reduce sound output compared with the Pro Circuit R-304
- Construction: Brushed aluminum body with stainless steel inlet tube and stainless steel end cap
- Brand: Pro Circuit
- Manufacturer Part Number: 1031985
- Vendor Part Number: 1031985
- Compatibility: Must be used with the applicable Pro Circuit pipe
Fitment:
2019 Yamaha YZ85
2020 Yamaha YZ85
2021 Yamaha YZ85
2022 Yamaha YZ85
2023 Yamaha YZ85
2024 Yamaha YZ85
2025 Yamaha YZ85