FMF Racing
Factory 4.1 RCT Slip-On Exhaust

Part Number: 045628

• Constructed from only aerospace grade materials that meets FMF exact specifications
• Shorter overall length is less susceptible to crash damage
• Shorter length design moves the muffler closer to the motor and improves centralize mass
• Greater canister volume helps reduce sound and increases packing life
• Race team tested and approved
• 100% Made in the USA

​​Massive power gains throughout the RPM range. FMF® uses the highest-quality proprietary blend of alloy titanium made especially to our standards. Quieter than stock. Huge weight savings. RTS (Rapid Tuning System) makes for easy sound insert changes as well as adding US Forestry-approved Spark Arrestor.

Fits:
2018-19 KTM 450 SX-F
2019 KTM 350 SX-F
2018-19 Husqvarna FC 450
2019 Husqvarna FC 350

• Muffler: Aluminum
• End Cap: Carbon Fiber