Anodized Titanium 4.1 RCT Slip-On Muffler
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The FMF 4.1 RCT Slip-On Muffler in Anodized Titanium is designed for Yamaha YZ250F (2019–2025) and WR250F (2020–2025) models. Featuring Resonance Chamber Technology (RCT), it...
The FMF 4.1 RCT Slip-On Muffler in Anodized Titanium is designed for Yamaha YZ250F (2019–2025) and WR250F (2020–2025) models. Featuring Resonance Chamber Technology (RCT), it improves exhaust flow for stronger power delivery while maintaining manageable noise levels. Lightweight and race-ready, it offers improved throttle response, durability, and a sleek factory-inspired finish.