FMF Factory 4.1 RCT Full Exhaust System Yamaha YFZ450 | 044438 All_bikes Removable upper door fabric

Removable upper door fabric

With our own tubing profile and

you're going to have to replace some important parts sometimes

When you're flying along sandy trails

Yoshimura now introduces our Alpha T Street Series slip-on system

FMF Factory 4.1 RCT Full Exhaust System Yamaha YFZ450 | 044438 All_bikes Removable upper door fabricThe 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