FMF 041604 Factory 4.1 RCT Full Exhaust System Aluminum Muffler with Carbon Fiber End Cap

The FMF Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally, achieving a shorter overall length that is less susceptible to crash damage and complementary to Factory Forward Engineering - moving the muffler closer to the motor to centralize mass for improved handling and durability.

Key Features:

• Patented core shape 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 range
• Constructed from aerospace grade materials that meet FMF's exacting specifications
• Natural aluminum muffler with carbon fiber end cap
• Stainless steel MegaBomb header for optimal exhaust scavenging
• Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
• Meets AMA and FIM sound requirements
• Includes 94dB QuietCore insert and spark arrestor screen insert
• Manufactured 100% at FMF's Southern California factory

This complete exhaust system delivers race-proven performance with enhanced power delivery across the RPM range while maintaining acceptable sound levels for closed course competition use.