Factory 4.1 RCT™ Stainless Steel Slip-On Muffler by FMF Racing®. The Factory 4.1 RCT incorporates the latest in FMF 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 the 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 the exacting specifications and is manufactured 100% at the Southern California factory. Massive power gains throughout the RPM range. Huge weight savings. New RTS (Rapid Tuning System). FMF uses the highest quality proprietary blend of alloy grade titanium made especially to the standards.
Notes
Remember to check your local or state laws regarding vehicle noise restrictions
This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. Shipping Restriction: CA, NY, ME
All new incorporating the latest in Resonance Chamber Technology
Patented core shape lowers sound level while maintaining maximum power output
Patented canister shape increases internal volume for more sound absorbing material
Patented chamber design to enhance and refine exhaust pressure
Factory Forward Engineering centralizes mass and is less prone to crash damage
Tuned exhaust with optimized core specifications for each application
Innovative rear endcap for simple installation of tuning tip inserts or spark arrestor
Stainless Steel midpipe for strength and durability
Includes spark arrestor and wash plug
Designed for your exhaust system needs
Will deliver unparalleled performance
Exquisite workmanship and great longevity
Over the decades, FMF Racing® has seen an amazing transformation in the world of motorcycles and ATVs. The progression of the technology is one of the challenges that keeps them going. FMF was there in the days when the singleshock and watercooled engines were huge innovations and FMF is glad to be here now for the aluminum chassis and electronic fuel injection. The goal will never change - take the most advanced machinery to its limit by building the world's best performing exhausts. And its a fact, FMF build every exhaust by hand from start to finish right here in the U.S.
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