Factory 4.1 RCT Exhaust Silencer 25-25 Kawasaki KX 250 F X - FMF 042411
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The FACTORY 4.1 RCT Stainless Slip-On with Carbon End Cap is designed for riders demanding top-tier performance. It leverages FMF's Resonance Chamber Technology™ for optimal power delivery. Its compact, forward-mounted design reduces crash susceptibility and centralises mass. Manufactured in Southern California from aerospace-grade materials, this slip-on provides substantial power gains across the RPM range and impressive weight savings. Features include FMF’s signature Resonance Chamber Technology™, a compact, crash-resistant design, aerospace-grade alloy and stainless steel construction, and a carbon end cap. The aluminium muffler has a grey anodised finish and includes a Rapid Tuning System (RTS). It comes with a 94dB quiet insert and a screen-type spark arrestor. 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). Suitable exclusively for closed course use.
- SKU
- 07-4004.F41.A
- Brand
- FMF Exhausts
- Availability
- In Stock (2)
Fitments (2)
| Make | Model | Year |
|---|---|---|
| KAWASAKI | KX 250F | 2025 |
| KAWASAKI | KX 250X | 2025 |
- SKU
- 07-4004.F41.A
- Brand
- FMF Exhausts
- Availability
- In Stock (2)
FULL DESCRIPTION
FMF Factory 4.1 RCT Exhaust Silencer - Carbon End Cap
Elevate your motorcycle's performance with the FMF Factory 4.1 RCT Stainless Slip-On. Engineered for riders who demand the best, this exhaust system utilizes FMF's cutting-edge Resonance Chamber Technology™ to unlock significant power gains across the entire RPM range. Its innovative compact and forward-mounted design not only reduces the risk of damage in the event of a crash but also centralizes mass for improved handling. Crafted entirely from aerospace-grade materials in Southern California, this slip-on offers exceptional durability and substantial weight savings, making it a superior choice for competitive racing and off-road enthusiasts.
Key Features:
- Designed for closed course competition use only.
- Features FMF's proprietary Resonance Chamber Technology™ for enhanced performance.
- Compact and robust construction minimizes susceptibility to impact damage.
- Forward muffler positioning aids in mass centralization for better agility.
- Constructed from premium aerospace-grade alloy and stainless steel for longevity.
- Includes a lightweight and strong carbon fiber end cap.
- Aluminium muffler body with a sleek grey anodised finish.
- Equipped with the Rapid Tuning System (RTS) for efficient adjustments.
- Delivers substantial power increases throughout the engine's operating range.
- Comes with a 94dB quiet insert and a screen-type spark arrestor.
Specifications:
- Type: Slip-On
- Configuration: Single Exhaust
- Muffler Construction: Aluminium
- Muffler Finish: Grey Anodised
- Midpipe Material: Stainless Steel
- End Cap Material: Carbon Fiber
- Included Accessories: Screen-type spark arrestor and 94dB quiet insert.
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