FMF Racing Dirt Bike Factory 4.1 RCT Exhaust
FEATURES
- 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
- Constructed from only aerospace grade materials that meet their exacting specifications and is manufactured 100% at their Southern California factory
- Massive power gains throughout the RPM range
- Huge weight savings
- RTS (Rapid Tuning System)
Select Part Number
From $195.60
Original: $651.99
-70%FMF Racing Dirt Bike Factory 4.1 RCT Exhaust—
$651.99
$195.60






















































Description
FEATURES
- 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
- Constructed from only aerospace grade materials that meet their exacting specifications and is manufactured 100% at their Southern California factory
- Massive power gains throughout the RPM range
- Huge weight savings
- RTS (Rapid Tuning System)























