Experience the cutting edge of performance with the FMF Racing Factory 4.1 RCT Muffler, designed specifically for Yamaha YZ450F models from 2014 to 2017, and the WR/YZ450FX from 2016 to 2018. Crafted with anodized titanium, this muffler not only reduces weight but also delivers exceptional durability and a sleek look that complements your bike's aggressive styling.The Factory 4.1 RCT muffler features a carbon fiber end cap, enhancing its aesthetic appeal while contributing to overall strength and heat resistance. Engineered by FMF Racing, a trusted name in motorsports, this muffler promises impressive noise control with the RCT silencing technology, helping you comply with sound regulations without sacrificing power.Installation is straightforward, allowing you to upgrade your exhaust system quickly and efficiently. Whether you're hitting the trails or taking on competitive tracks, this muffler ensures optimized exhaust flow for improved throttle response and performance. Transform your Yamaha with a high-quality, race-ready muffler that meets the demands of serious riders and enthusiasts alike.