FMF 044460 Factory 4.1 RCT Full Exhaust System with MegaBomb Header

The FMF Factory 4.1 RCT Full Exhaust System represents the pinnacle of motocross exhaust technology, featuring FMF's proprietary Resonance Chamber Technology both internally and externally. This complete system includes a MegaBomb header paired with a Factory 4.1 RCT muffler with carbon fiber end cap, engineered to deliver massive power gains throughout the entire RPM range.

Key Features:

• Stainless steel header with MegaBomb design for enhanced power delivery
• Natural aluminum muffler construction with carbon fiber end cap
• Shorter overall length reduces crash damage susceptibility
• Factory Forward Engineering centralizes mass by positioning muffler closer to engine
• Wrapped perforated core design for optimal sound control
• Includes 94dB quiet insert and spark arrestor screen insert
• Manufactured from aerospace-grade materials at FMF's Southern California facility
• Single configuration exhaust system

This full system is constructed from premium aerospace-grade materials including stainless steel headers and aluminum muffler body, meeting FMF's exacting quality standards. The system delivers improved power across all RPM ranges while maintaining sound levels suitable for closed-course competition use. Made in the USA with 100% domestic manufacturing.