FMF

Muffler Alum Fact 4.1 Kx

Part # 1821-2035

• —RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output
• —Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power
• —FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage
• —Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
• —Compatible with stock header or FMF header
• —Meets AMA and FIM sound requirements
• —QuietCore 94 dB insert included
• —Spark arrestor included in muffler
• —Made in the USA