FMF 044498 Factory 4.1 RCT 4-Stroke Slip-On Muffler

The FMF Factory 4.1 RCT is a premium slip-on muffler engineered for 4-stroke motocross and off-road motorcycles. Built to deliver measurable performance gains over the stock exhaust system, the Factory 4.1 RCT combines race-proven technology with a lightweight titanium and stainless steel construction to reduce overall weight while increasing power output across the RPM range.

The RCT (Rolled Carbon Titanium) designation refers to its signature carbon fiber end cap and titanium construction, giving this muffler a distinctive race-ready appearance that matches its on-track performance. The Factory 4.1 series is one of FMF's most popular and trusted muffler lines, used by professional and amateur riders alike.

Key Features:

• Lightweight titanium canister construction reduces unsprung weight
• Carbon fiber end cap for heat resistance and premium aesthetics
• Stainless steel mid-pipe for durability and corrosion resistance
• Tuned internal packing and core for optimized power delivery
• Slip-on design for straightforward installation
• Increased horsepower and torque over OEM exhaust
• Improved exhaust flow for enhanced throttle response
• FMF MPN: 044498

The FMF Factory 4.1 RCT muffler is a top-tier aftermarket exhaust upgrade for riders seeking a significant performance and weight savings advantage without a full system replacement.