FMF Racing YFZ450 Factory 4.1 S/O Anodized Titanium Muffler

FMF Racing is well-known for making high-performance exhaust systems, and their Factory 4.1 RCT muffler is a prime example of that expertise. This muffler is specifically designed for your 2009-2020 Yamaha YFZ450R and also fits the 2010-2011 YFZ450X. It's built to give you a significant boost in power across the entire RPM range, making your ATV more responsive and capable.

This muffler uses FMF's latest Resonance Chamber Technology, both inside and out, to help improve performance. They've also made it shorter than previous designs, which not only helps it withstand crash damage better but also allows for mass centralization by moving the muffler closer to the engine. This is part of their Factory Forward Engineering approach. The entire muffler is constructed from aerospace-grade titanium, meeting FMF's strict standards, and it's finished with a blue anodized titanium body and a carbon fiber end cap for a sharp look. The Rapid Tuning System (RTS) is also incorporated, allowing for easier tuning adjustments.

When you're looking to get the most out of your YFZ450R, this FMF Racing muffler is a solid option. It's made entirely at their Southern California factory, ensuring it meets their exacting specifications. You'll notice a real difference in how your ATV performs after installation.