FMF Factory 4.1 RCT Stainless Slip-On Muffler 2019-25 Suzuki RMZ250 | 043372 Thor 2025 We know how exhausting an

We know how exhausting an entire day of riding can be

They’re built for the way you ride

And heavy-duty clamps keep it firmly in place

It's no secret that the YZ450F has tons of power and torque

Hard doors made of poly are incredibly strong—250 times stronger than glass

FMF Factory 4.1 RCT Stainless Slip-On Muffler 2019-25 Suzuki RMZ250 | 043372 Thor 2025 We know how exhausting anThe 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