Experience advanced performance with the FMF Racing Factory 4.1 RCT Stainless Slip-On equipped with a lightweight carbon end cap. Engineered for serious riders, this slip-on utilises FMF?s cutting-edge Resonance Chamber Technology? for increased power and reduced noise. The design emphasises centralised mass by positioning the muffler closer to the engine, reducing vulnerability to crash damage and enhancing handling. Precision-crafted in Southern California from aerospace-grade materials, the Factory 4.1 RCT ensures exceptional durability and substantial weight savings for closed-course competition.
Features
- Incorporates FMF Resonance Chamber Technology? for superior performance
- Shorter overall length to minimise crash exposure
- Muffler positioned for optimised mass centralisation
- Aerospace-grade natural aluminium muffler with carbon end cap
- Massive power gains across the RPM range
- Substantial weight savings for improved agility
- Rapid Tuning System (RTS) for easy adjustments
- Stainless steel midpipe for strength and longevity
- Removable screen-type spark arrestor (included)
- 94dB quiet insert (included)
- Notice: For closed course use only
Specifications
- Item ID: 045632
- Type: Slip-On
- Configuration: Single
- Construction: Aluminium
- Finish: Natural
- Midpipe Material: Stainless Steel
- End Cap: Carbon Fibre
- Spark Arrestor: Screen Insert (included)
- Quiet Insert: 94dB Insert (included)
- Weight: 7.1 lbs
- Carb Warning: No
Vehicle Fitment
GAS GAS
- EX 250F (2021?2023)
- MC 250F (2021?2023)
HUSQVARNA
- FC 250 (2019?2022)
KTM
- 250 SX-F (2019?2022)
- 250 XC-F (2019?2022)







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