FMF Factory 4.1 RCT is a premium race full exhaust system built to improve performance and centralize mass with a shorter overall design. Featuring FMF Resonance Chamber Technology™ and aerospace-grade construction, it’s made for riders who demand factory-level quality.
FMF Factory 4.1 RCT Exhaust System is engineered for riders who want maximum race-focused performance and a more compact, better-protected full system. By integrating FMF Resonance Chamber Technology™ internally and externally, the Factory 4.1 RCT is designed to deliver a strong, responsive power character while keeping the system’s overall packaging tight.
Its shorter overall length helps make the exhaust less susceptible to crash damage and complements Factory Forward Engineering by moving the muffler closer to the motor to centralize mass. The result is a more race-ready setup that supports aggressive riding and competition conditions.
