The FMF Factory 4.1 RCT Slip-on Exhaust System is engineered to deliver massive power gains across the entire RPM range while achieving significant weight savings. At the core of this performance upgrade is a new RTS (Rapid Tuning System), designed to optimize exhaust flow and engine response. The system utilizes a proprietary blend of alloy grade titanium, manufactured to FMF’s specific standards, ensuring a high-quality construction that balances durability with the lightweight characteristics required for competitive motorsports.
This exhaust system is intended for race use only and is not legal for use on pollution-controlled vehicles in California, where a waiver is available for compliance. By combining the lightweight properties of the specialized titanium alloy with the efficiency of the RTS, the Factory 4.1 RCT provides a direct mechanical advantage for riders seeking to maximize their machine's potential on the track.