FMF Factory 4.1 RCT Exhaust System – Precision Performance for KTM Riders

Engineered for motocross and enduro enthusiasts who demand peak performance, the FMF Factory 4.1 RCT Complete System redefines exhaust technology with its advanced Resonance Chamber Technology™. Designed specifically for KTM models, this system delivers unmatched power refinement while reducing crash vulnerability—perfect for aggressive trail riding or competitive racing.

Why Riders Choose the Factory 4.1 RCT

• Patented Core & Canister Design: Optimized internal geometry lowers decibel levels without sacrificing horsepower, keeping you compliant and competitive.
• Crash-Resistant Build: Shorter overall length and Factory Forward Engineering position the muffler closer to the engine, improving weight distribution and durability.
• Aerospace-Grade Materials: Fully crafted in California using premium titanium and alloys for heat resistance and longevity.
• Tuned for Your Bike: Custom core specifications and included Titanium Megabomb header maximize torque and throttle response across RPM ranges.

Upgrade Your Ride

• Effortlessly install tuning tips or a spark arrestor via the innovative rear endcap—ideal for off-road compliance.
• The expanded internal volume absorbs sound waves effectively, making it a favorite among riders who prioritize both performance and noise control.

Ideal For: KTM owners seeking a race-ready exhaust that balances power gains, durability, and sound management. Whether hitting motocross tracks or technical single-track trails, the Factory 4.1 RCT keeps you ahead.

Compare to standard exhausts: 15% lighter, 20% more internal sound absorption, and precision-tuned for KTM’s engine characteristics.