FACTORY 4.1 RCT TITANIUM SL (Slip-On) 041509 YAMAHA-YZ450FX-2022 Reduces sound output as much

Reduces sound output as much as 1

Result is a flow increase of nearly 10%

1 provides a refined power curve with strong gains across the entire RPM range

the PowerBomb is a “pre-muffler” of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases)

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

FACTORY 4.1 RCT TITANIUM SL (Slip-On) 041509 YAMAHA-YZ450FX-2022 Reduces sound output as muchThe 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