top of page

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.


Currently taking pre-orders!

FMF 4.1 RCT Titanium Anodized Muffler (Slip-On)

$649.99 Regular Price
$599.99Sale Price
Excluding Sales Tax
    • Massive Power gains throughout the RPM range.
    • Huge weight savings!
    • Built with the highest quality FMF proprietary blended alloys.

Related Products