FMF 042411 Factory RCT Slip-On Exhaust with Carbon End Cap - 4.1

The FMF Factory 4.1 RCT Slip-On Exhaust represents the pinnacle of motocross exhaust engineering, designed to unlock hidden power potential in your four-stroke machine. This premium slip-on muffler delivers impressive power gains throughout the entire RPM range while improving both low-end torque and top-end pull.

Advanced Resonance Chamber Technology:

The Factory 4.1 RCT incorporates FMF's proprietary Resonance Chamber Technology both internally and externally. This specialized chamber sits at the front of the slip-on and refines exhaust pressure to optimize power output while simultaneously lowering sound levels to comply with FIM 2M max sound tests and stringent AMA sound requirements. Unlike other quiet mufflers, the RCT chamber design enhances performance rather than sacrificing it.

Key Features:

• Aerospace-grade stainless steel and aluminum construction for durability and corrosion resistance
• Premium carbon fiber end cap for reduced weight and aggressive styling
• Shorter overall length reduces crash damage susceptibility
• Factory Forward Engineering moves the muffler closer to the motor to centralize mass
• Patented core shape enhances exhaust pressure for optimal power delivery
• Compatible with both FMF and stock OEM headers
• Manufactured 100% in FMF's Southern California facility
• Made in the USA with materials meeting FMF's exacting specifications

The Factory 4.1 RCT delivers race-proven performance trusted by professional riders in AMA Supercross, Motocross, and FIM Motocross of Nations. Whether you're racing or riding trails, this exhaust system provides the performance, sound compliance, and durability that serious riders demand.