FMF Ti Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap - 045586 - 2016-2018 KTM 250 SX-F, 350 SX-F, and 450- SX-F

✨FMF 045586 Factory 4.1 RCT Slip-On Muffler – Maximum Power for Your KTM!

Boost the performance of your 2016-2018 KTM 250 SX-F, 350 SX-F, 450 SX-F, 450 XC-F, 250 XC-F, and 2015-2017 KTM 450 SX-F FE with the FMF 045586 Factory 4.1 RCT Slip-On Muffler. Engineered with FMF’s cutting-edge Resonance Chamber Technology™ (RCT) and Factory Forward Engineering, this high-performance exhaust system delivers massive power gains, reduces weight, and enhances throttle response—all while maintaining race-legal sound levels.

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Why Choose the FMF Factory 4.1 RCT?

✔ Resonance Chamber Technology™ (RCT) – Improves exhaust flow for increased power across the entire RPM range.
✔ Factory Forward Engineering – Compact design moves weight closer to the engine, improving balance and handling.
✔ Titanium Construction + Carbon Fiber End Cap – Ultra-lightweight, durable, and built for racing.
✔ Rapid Tuning System (RTS) – Allows for quick and easy adjustments.
✔ Massive Power Gains & Weight Savings – More power, better acceleration, and a lighter feel on the track.
✔ 100% Made in the USA – Manufactured at FMF’s Southern California factory for unmatched quality and craftsmanship.

Dominate the Track – Upgrade Today!

If you're serious about performance, the FMF 045586 Factory 4.1 RCT Slip-On Muffler is the ultimate upgrade for your KTM motocross or enduro bike. Don't settle for stock—unlock your bike's full potential now!

❇️ Limited Stock – Order Now Before It’s Gone!

FAQs:

❓ Will this fit a 2019+ KTM SX-F or XC-F model?
No, this model is specifically designed for 2016-2018 KTM 250 SX-F, 350 SX-F, 450 SX-F, 450 XC-F, 250 XC-F, and 2015-2017 KTM 450 SX-F FE.

❓ Does it include a spark arrestor?
No, but a spark arrestor insert is available separately for trail compliance.

Fitment:

2016-2018 KTM 250 SX-F 
2016-2018 KTM 350 SX-F 
2016-2018 KTM 350 XC-F 
2016-2018 KTM 450 SX-F 
2016-2018 KTM 450 XC-F  
2016-2018 KTM 250 XC-F 
2015-2017 KTM 450 SX-F FE

KTM 4-Stroke Dirt Bikes - Performance Parts & Accessories