The 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 our Southern California factory.
The FMF Factory 4.1 slip-on exhaust is the same exhaust that professional racers use to bring home championships around the world. The technology in this slip-on exhaust cannot be found in any other exhaust. Since the Factory 4.1 slip-on exhaust is meant to be used for competition, FMF made this pipe ready to take to the track straight out of the box.
Features:
- Massive power gains throughout the RPM range
- Huge weight savings over stock exhaust
- Anodized titanium construction
- FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards.
- Carbon fibre end cap
- RTS (Rapid Tuning System) for quick and easy trackside tuning
- Removable spark arrestor included
- Quiet insert included (94db)
- Can be used with FMF or stock OEM Header
- Used by BTO Sports KTM, JGR Toyota Yamaha, NFab Yamaha, Rockstar Energy Racing KTM
- 100% made in the USA
Weight:
- Titanium / Carbon end cap 2kg (4.4lbs)
