Yoshimura 264622D320 RS-4 Signature Series Slip-On - Aluminum Muffler (Natural)

Marketing Color: Natural
Material: Aluminum

Stainless Steel Tailpipe/Aluminum Muffler/Carbon Fiber End Cap.

Delivers huge power at a very light weight. Offers better handling thanks to a lower centralized mass coefficient. Uniquely-styled pentagonal muffler body with a carbon fiber cone end cap. Front cap design functions as a polyresonant chamber to lower dB output while improving mid- to top-end power. Two-staged, stepped baffle. Tapered headpipe delivers optimal flow and performance. Titanium systems include non-spark-arrested 99 dB motocross insert (unless noted). Mufflers available with glossy carbon fiber, satin titanium or brushed aluminum sleeve. Stainless systems come with 94 dB insert installed (meets AMA competition requirements), 2 meter Max insert in the box.

Vehicle Fitment:

2021-2023 Gas Gas EX 450F
2021-2023 Gas Gas MC 450F
2019-2022 Husqvarna FC450
2018-2019 Husqvarna FC450 Rockstar Edition
2019-2022 Husqvarna FX450
2016-2022 KTM 450 SX-F
2018 KTM 450 SX-F Factory Edition
2020-2022 KTM 450 SX-F Factory Edition
2016-2022 KTM 450 XC-F