Product Details
Yoshimura RS-4 Slip-On Exhaust Honda CRF250 L / CRF250 Rally
The Yoshimura RS-4 Slip-On exhaust has been put to the test and has proven its capabilities at the highest level of competition. In 2010 the RS-4 muffler helped Ryan Dungey claim the AMA 450 Supercross and Motocross championships in his rookie season. The Yoshimura-backed GEICO Honda team also took home both East and West Coast Supercross Lites titles in 2012 using the Yoshimura RS-4 exhaust.
Utilizing the same R&D that helped bring success at the national level has resulted in a unique exhaust design that provides an unrivaled combination of power and quiet exhaust note. The Yoshimura RS-4 Pipe features an innovative carbon cone end cap, a two staged stepped baffle, and a polyresonant duplex chamber which acts as a muffler within a muffler to help save weight and centralize mass.
Features:
- Pentagonal-shaped sleeve
- Polyresonant front muffler chamber which helps reduce noise
- Two-stage stepped baffle
- Yoshimura Race Series muffler
- Carbon fiber end-cap
- 100% Made in the USA

Product Style | RevZilla Item # | Store Sku | MFR. Product # | Availability |
---|---|---|---|---|
Product Style Stainless Steel/Carbon Fiber | RevZilla Item #1219949 | Store Sku | MFR. Product #123402D520 | AvailabilityIn Stock: Ships within 24 hours |
- Honda
- CRF250L 2017, 2018, 2019, 2020
- CRF250L ABS 2019, 2020
- CRF250L Rally 2017, 2018, 2019, 2020
- CRF250L Rally ABS 2019, 2020
- Honda
- CRF300L 2021-2025
- CRF300L ABS 2021-2024
- CRF300L Rally 2021-2025
- CRF300L Rally ABS 2021-2024
- CRF300LS 2023-2025
- CRF450X 2019-2026
- Suzuki
- RMZ450 2018-2026
- Yamaha
- WR450F 2016-2018
- WR450F 2019-2023
- YZ250F 2024-2026
- YZ250F 70th Anniversary Edition 2026
- YZ250F Monster Energy Race Edition 2024-2025
- YZ450F 2014-2017
- YZ450F 2018-2022
- YZ450F Monster Energy Race Edition 2022
- YZ450FX 2016-2017
- YZ450FX 2019-2023
Yoshimura RS-4 Slip-On Exhaust Honda CRF250L / Rally 2017-2020 Installation
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