FMF Factory 4.1 RCT Stainless Steel Slip-On Muffler w/ Carbon End Cap: 18-21 Yamaha WR450F & YZ450F/FX Models

FMF Factory 4.1 RCT Stainless Steel Slip-On Muffler w/ Carbon End Cap: 18-21 Yamaha WR450F & YZ450F/FX Models

*Exhaust ONLY. Bike Sold Separately*

Note: For Closed Course Use Only

Fitment: 

• 18-21 Yamaha YZ450F
• 2019 Yamaha WR450F
• 19-21 Yamaha YZ450FX

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, a shorter overall length that is less susceptible to crash damage and complementary to 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 exacting specifications and is manufactured 100% at Southern California factory.

Features:

• Massive Power gains throughout the RPM range.
• Huge weight savings
• New RTS (Rapid Tuning System)
• FMF uses the highest quality proprietary blend of alloy grade titanium made especially to their standards.

WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.