FMF Factory 4.1 RCT Exhaust System for Yamaha YFZ450R (2010-2018)

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.

The FMF Factory 4.1 RCT exhaust system offers advanced performance enhancements for Yamaha YFZ450R models from 2010 to 2018. Engineered with FMF's proprietary Resonance Chamber Technology™, this exhaust maximizes power output and torque across the entire RPM range. Crafted from aerospace-grade titanium, it ensures exceptional strength-to-weight ratio, resulting in significant weight savings that improve handling and acceleration. The system's shorter length design reduces vulnerability to crash damage and aligns with Factory Forward Engineering principles by positioning the muffler closer to the motor for better weight distribution and centralized mass. Manufactured entirely in Southern California, the Factory 4.1 RCT meets strict quality standards and provides durability for demanding off-road use. The inclusion of the new RTS (Rapid Tuning System) makes tuning adjustments more straightforward, providing riders with enhanced control and customization options. Please note that this product is designed for race use only in California, with a waiver available for non-pollution-controlled vehicles. The FMF Factory 4.1 RCT is a high-performance upgrade that delivers massive power gains and substantial weight reduction, making it an ideal choice for competitive riders seeking reliability and top-tier performance.

Features:

• Massive power gains throughout the RPM range

• Significant weight savings for improved handling

• New RTS (Rapid Tuning System) for quick adjustments

• Constructed from aerospace-grade titanium for durability and weight reduction

• Shorter overall length reduces crash vulnerability

• Designed to centralize mass for better balance and handling

• Manufactured in Southern California to meet strict quality standards

• Race use only in California, waiver available

Fits,
Yamaha YFZ450R 2009
Yamaha YFZ450R 2010
Yamaha YFZ450R 2011
Yamaha YFZ450R 2012
Yamaha YFZ450R 2013
Yamaha YFZ450R 2014
Yamaha YFZ450R 2015
Yamaha YFZ450R 2016
Yamaha YFZ450R 2017
Yamaha YFZ450R 2018
Yamaha YFZ450R 2019
Yamaha YFZ450R 2020
Yamaha YFZ450R 2021
Yamaha YFZ450R 2022