FMF Factory 4.1 Slip-On Exhaust | 042330 Grey If you have the older

If you have the older motor

You get 3" travel of pull

Husaberg FE 390 2011

and AMA (in accordance with their environmental codes)

as well as the 250 East Supercross Championship with Chase Sexton and GEICO Honda

FMF Factory 4.1 Slip-On Exhaust | 042330 Grey If you have the olderThe 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