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FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.
Elevate your 2021-2023 Honda CRF450R or CRF450RX with the FMF Factory 4.1 RCT Aluminum Muffler. This high-performance slip-on is designed to provide significant power gains throughout the entire RPM range. By incorporating FMF's signature Resonance Chamber Technology, this muffler provides a smooth, linear power delivery that helps you maintain traction and control on the track or the trail.
The Factory 4.1 RCT is the go-to choice for riders who demand consistent, reliable power. Its robust aluminum construction ensures it can handle the high-heat environment of a modern 450cc engine, while the carbon fiber end cap provides a professional, race-ready look. Whether you are competing in motocross or off-road racing, this muffler will help you unlock the true potential of your Honda. Trust in the engineering excellence of FMF Racing and find your next upgrade at GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 2021-2023 | Honda | CRF450R | Base |
| 2021-2023 | Honda | CRF450RX | Base |
Other popular FMF Racing products customers consider together:
FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.
Elevate your 2021-2023 Honda CRF450R or CRF450RX with the FMF Factory 4.1 RCT Aluminum Muffler. This high-performance slip-on is designed to provide significant power gains throughout the entire RPM range. By incorporating FMF's signature Resonance Chamber Technology, this muffler provides a smooth, linear power delivery that helps you maintain traction and control on the track or the trail.
The Factory 4.1 RCT is the go-to choice for riders who demand consistent, reliable power. Its robust aluminum construction ensures it can handle the high-heat environment of a modern 450cc engine, while the carbon fiber end cap provides a professional, race-ready look. Whether you are competing in motocross or off-road racing, this muffler will help you unlock the true potential of your Honda. Trust in the engineering excellence of FMF Racing and find your next upgrade at GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 2021-2023 | Honda | CRF450R | Base |
| 2021-2023 | Honda | CRF450RX | Base |
Other popular FMF Racing products customers consider together: