FMF Factory 4.1 Stainless Slip-On Exhaust KTM/HUS/GAS 350-450 ('19-23) | 045628 Tools FMF looked at their top

FMF looked at their top of the line products to deliver race-inspired performance at an economical price

Makes bleeding your brakes a snap and finding vacuum leaks easy

For water-cooled Honda CRF150 models only

Yamaha YZ250FX 2015 to 2019

1997 - YFM350FW Big Bear 4WD [SRA]

FMF Factory 4.1 Stainless Slip-On Exhaust KTM/HUS/GAS 350-450 ('19-23) | 045628 Tools FMF looked at their topThe 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