STAINLESS STEEL ALUM. FACT-4.1 RCT W/R.CARBON CAP FULL SYSTEM 042372 YAMAHA-WR250F-2025 The supercross version is designed

The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range

-Quiet on the trail as well as on the sound meter

-Our most popular 2-stroke pipe

With its longer oval canister

Increases output from stock motor as much as 3hp

STAINLESS STEEL ALUM. FACT-4.1 RCT W/R.CARBON CAP FULL SYSTEM 042372 YAMAHA-WR250F-2025 The supercross version is designedThe 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