
| SKU | FMF045594 |
| MPN | 045594 |
| GTIN | 045594 |
| Certifications | None |
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2018 | KTM | 450 SX-F | Base |
| 2015-2017 | KTM | 450 SX-F Factory Edition | Base |
| 2016-2018 | KTM | 450 XC-F | Base |
| 2017-2019 | KTM | 500 EXC-F | Base |
| 2017-2019 | KTM | 250 EXC-F | Base |
| 2016-2018 | KTM | 250 SX-F | Base |
| 2015-2016 | KTM | 250 SX-F Factory Edition | Base |
| 2016-2018 | KTM | 250 XC-F | Base |
| 2017-2019 | KTM | 350 EXC-F | Base |
| 2016-2018 | KTM | 350 SX-F | Base |
| 2016-2018 | KTM | 350 XC-F | Base |
| 2018-2019 | KTM | 450 EXC-F | Base |
Experience high-performance sound and power with the FMF 4-Stroke Factory 4.1 RCT Muffler, crafted specifically for KTM and Husqvarna models including 250 to 450cc SXF and FE/XCF series from 2015 to 2018. This premium muffler boasts FMF Racing's signature craftsmanship, ensuring durability and race-proven performance. Featuring a state-of-the-art Carbon Cap design, it not only delivers superior exhaust flow but also a sleek, aggressive look that complements your bike’s aesthetics.
Optimized for four-stroke engines, the Factory 4.1 RCT Muffler reduces weight while maximizing power output, giving riders that extra edge on both trails and tracks. Its sound output is tuned for optimal compliance without sacrificing the unmistakable FMF roar that enthusiasts crave. Easy to install and maintain, this component is the perfect upgrade for riders looking to enhance throttle response and overall engine efficiency.
Backed by FMF Racing’s rigorous quality standards, the 4.1 RCT Muffler offers a trusted solution for anyone aiming to boost the performance of their KTM or HQV four-stroke machines. Elevate your ride and conquer any terrain with the unmistakable performance and sound only FMF can deliver.
Optimized for four-stroke engines, the Factory 4.1 RCT Muffler reduces weight while maximizing power output, giving riders that extra edge on both trails and tracks. Its sound output is tuned for optimal compliance without sacrificing the unmistakable FMF roar that enthusiasts crave. Easy to install and maintain, this component is the perfect upgrade for riders looking to enhance throttle response and overall engine efficiency.
Backed by FMF Racing’s rigorous quality standards, the 4.1 RCT Muffler offers a trusted solution for anyone aiming to boost the performance of their KTM or HQV four-stroke machines. Elevate your ride and conquer any terrain with the unmistakable performance and sound only FMF can deliver.
Customer reviews
Based on 160 reviews
Netherlands owned and operated
We want to deliver parts fast, efficiently, and with ease. Our mission is to continue to provide just that. To provide large inventory and efficient logistics while maintaining great service. As well as a community with like-minded auto enthusiasts that share the same passion as we do.

















