Yoshimura · RS-4
The Yoshimura RS-4 Muffler Decal Set (4 pcs) is a replacement service parts kit designed to update the appearance of an RS-4 muffler with fresh, factory-style graphics. This 4 piece set includes inside and outside sleeve wraps along with end-cap decals for a complete visual refresh.
This decal set is listed for fitment across a wide range of off-road models from GasGas, Honda, Husqvarna, KTM, Suzuki, and Yamaha (see the fitment table below for exact models and years).
Engineering
Yoshimura specifies a high-temp aluminum backing for the body decal. That construction is chosen specifically for use on an RS-4 muffler body where elevated temperatures are expected, helping the decal set serve as a purpose-built replacement for the original-style application.
Materials
For the end cap, Yoshimura uses 12 mil vinyl. Using a dedicated end-cap decal material helps keep the kit focused on the unique surfaces and positioning found at the muffler outlet end, so the refreshed look carries through the entire RS-4 canister.
Fitment
Listed by Yoshimura for the GasGas EX-250F (2023), EX-350F (2021–2023), MC-250F (2021–2023), MC-350F (2022–2023) and MC-450F (2022–2023); Honda CRF250R (2010–2013), CRF450L-International (2019–2025) and CRF450X (2019–2026); Husqvarna FC250 (2019–2022) and FC350 (2019–2022); KTM 250SX-F (2019–2022), 250SX-F-FACTORY-EDITION (2015), 250XC-F (2019–2020), 350SX-F (2016–2022), 350XC-F (2020), 450SX-F (2012–2014, 2019–2022), 450SX-F-FACTORY-EDITION (2012–2014, 2018–2021) and 450XC-F (2013–2015, 2019–2022); Suzuki RM-Z250 (2010–2018), RM-Z450 (2008–2017) and RMX450Z (2010–2011); Yamaha WR250F (2015–2018, 2020–2023), WR450F (2019–2022), YZ250F (2014–2026), YZ250FX (2015, 2020–2023), YZ450F (2014–2022) and YZ450FX (2019–2022). See the fitment table below for every model year.
Materials
Yoshimura builds this RS-4 decal kit with different materials for different locations on the muffler. The body decal uses a high-temp aluminum backing, while the end cap decal is produced in 12 mil vinyl. That division matches the typical needs of an RS-4 muffler, where the body and end cap are distinct surfaces that benefit from purpose-selected decal construction.
Fitment
This Yoshimura replacement decal set is listed for a broad spread of RS-4 applications, including select model years from GasGas, Honda, Husqvarna, KTM, Suzuki, and Yamaha. Because coverage varies by model and year, the correct way to confirm application is to reference the fitment table on the page and match the motorcycle exactly to the listed entries.
Installation
Yoshimura notes a specific limitation regarding the inner sleeve decal. The inner sleeve decal cannot be used when applying to older gen RS-4 mufflers where a badge is used on inside of the muffler. That detail can help avoid installation issues when refreshing decals on earlier RS-4 versions.
| Part Number | RS4-NB005 |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Series | RS-4 |
| Shipping Weight | 1 lb |
| Barcode | 00840025910508 |
| Make | Model | Model Years |
|---|---|---|
| GasGas | EX-250F | 2023 |
| GasGas | EX-350F | 2021–2023 |
| GasGas | MC-250F | 2021–2023 |
| GasGas | MC-350F | 2022–2023 |
| GasGas | MC-450F | 2022–2023 |
| Honda | CRF250R | 2010–2013 |
| Honda | CRF450L-International | 2019–2025 |
| Honda | CRF450X | 2019–2026 |
| Husqvarna | FC250 | 2019–2022 |
| Husqvarna | FC350 | 2019–2022 |
| KTM | 250SX-F | 2019–2022 |
| KTM | 250SX-F-FACTORY-EDITION | 2015 |
| KTM | 250XC-F | 2019–2020 |
| KTM | 350SX-F | 2016–2022 |
| KTM | 350XC-F | 2020 |
| KTM | 450SX-F | 2012–2014, 2019–2022 |
| KTM | 450SX-F-FACTORY-EDITION | 2012–2014, 2018–2021 |
| KTM | 450XC-F | 2013–2015, 2019–2022 |
| Suzuki | RM-Z250 | 2010–2018 |
| Suzuki | RM-Z450 | 2008–2017 |
| Suzuki | RMX450Z | 2010–2011 |
| Yamaha | WR250F | 2015–2018, 2020–2023 |
| Yamaha | WR450F | 2019–2022 |
| Yamaha | YZ250F | 2014–2026 |
| Yamaha | YZ250FX | 2015, 2020–2023 |
| Yamaha | YZ450F | 2014–2022 |
| Yamaha | YZ450FX | 2019–2022 |
Fitment as listed by Yoshimura for part number RS4-NB005.
Instructions / What's Included (PDF)
Provided by Yoshimura. Opens in a new tab.
