FACTORY 4.1 RCT TITANIUM SL (Slip-On) 041509 YAMAHA-YZ450FX-2022 Result is a flow increase

Result is a flow increase of nearly 10%

and Colton Haaker to name a few

The redesigned PowerBomb is a four-stroke header that incorporates FMF's patented PowerBomb module at a precise location in the initial stage of the header

The outer chamber in the Powerbomb allows the air to expand

you can choose between a moto or supercross version

FACTORY 4.1 RCT TITANIUM SL (Slip-On) 041509 YAMAHA-YZ450FX-2022 Result is a flow increaseThe 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