Description

FMF Racing® Factory 4.1 RCT Slip-On Aluminum Muffler for some Yamaha YZ and WR models 044443

2020 Yamaha YZ450FX
2019 Yamaha YZ450FX
2019 Yamaha WR450F
2018-2020 Yamaha YZ450F

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering – moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.

Features:

• The Factory 4.1 RCT is constructed from only aerospace grade materials that meet their exacting specifications and is manufactured 100% at their Southern California factory
• Massive Power gains throughout the RPM range.
• Huge weight savings
• RTS (Rapid Tuning System)

Finish:

• Const: Aluminum
• Finish: Natural
• Midpipe: Stainless Steel
• Endcap: Carbon

Fitment:

• 2020 Yamaha YZ450FX
• 2019 Yamaha YZ450FX
• 2019 Yamaha WR450F
• 2018-2020 Yamaha YZ450F