Description
Designed for riders demanding top-tier performance and engineering, the FACTORY 4.1 RCT Stainless Slip-On with Carbon End Cap leverages FMF's advanced Resonance Chamber Technologyª, offering internal and external enhancements for optimal power delivery. Its compact construction reduces crash susceptibility while centralising mass with a forward-mounted design. Manufactured entirely in Southern California from aerospace-grade materials, this slip-on provides substantial power gains across the RPM range and impressive weight savings, making it an ideal choice for competitive racers.
Features
- Suitable exclusively for closed course use
- Incorporates FMFÕs signature Resonance Chamber Technologyª
- Compact, crash-resistant design with forward muffler positioning to centralise mass
- Aerospace-grade alloy and stainless steel construction
- Carbon end cap for lightweight strength and durability
- Aluminium muffler with a grey anodised finish
- Rapid Tuning System (RTS) for quick adjustments
- Massive power gains throughout the RPM range
- Includes 94dB quiet insert and screen-type spark arrestor
Specifications
- Item ID: 042411
- Type: Slip-On
- Configuration: Single
- Construction: Aluminium
- Finish: Grey Anodised
- Midpipe: Stainless Steel
- Endcap: Carbon
- Spark Arrestor: Screen insert (included)
- Quiet Insert: 94dB insert (included)
- Carb Warning: Not applicable
Vehicle Fitment
Kawasaki
- KX250F (2025)
- KX250X (2025)