FMF Factory 4.1 RCT Muffler - Aluminum YZ250F 2019-2024 044453 1821-1883 Viewing T-Shirt weight saving over stock)

weight saving over stock)

This tank has a 1

side cover gasket

Stock Header 4lbs

Half waffle design

FMF Factory 4.1 RCT Muffler - Aluminum YZ250F 2019-2024 044453 1821-1883 Viewing T-Shirt weight saving over stock)The Factory 4. 1 RCT incorporates FMF's Resonance Chamber Technology both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their 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 their exacting specifications and is manufactured 100% at their