FMF 045558 Factory 4.1 RCT Slip-On Exhaust Muffler Aluminum with Carbon Fiber End Cap

The FMF Factory 4.1 RCT Slip-On Exhaust incorporates the latest in FMF Resonance Chamber Technology both internally and externally. This premium slip-on muffler is constructed from aerospace-grade aluminum with a stainless steel midpipe and features a carbon fiber end cap for superior performance and durability.

Key Features:

• RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output
• Internal ducts in the chambers increase internal volume for improved exhaust flow, resulting in power gains throughout the entire RPM range
• Factory Forward Engineering design centralizes mass and is less prone to crash damage
• Shorter overall length moves the muffler closer to the motor and improves centralized mass
• Greater canister volume helps reduce sound and increases packing life
• Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
• RTS (Rapid Tuning System) makes for easy sound insert changes
• QuietCore 94dB insert included
• Screen-style spark arrestor included in muffler
• Quieter than stock with huge weight savings
• Meets AMA and FIM sound requirements
• Compatible with stock header or FMF header
• 100% Made in the USA

Race team tested and approved, this exhaust delivers massive power gains throughout the RPM range while maintaining a quieter sound level than stock. The natural aluminum finish provides a professional appearance that complements any build.