Does it fit your motorcycle?
Look it up by licence plate or VIN, or choose your model.
Confirmed compatible · Position:
This part doesn't fit your bike. See parts that fit
Fits most motorcycles
Not model-specific. Check dimensions and specifications in the description before ordering.
Chosen by size, not by model
The size is printed on the tyre sidewall, e.g. 120/70 ZR17, and in your registration document.
Checking fitment…
Fitment check unavailable
FMF Factory 4.1 RCT Aluminium Full Exhaust System - 042397
Product info
- Item number
- 18201985
- Manufacturer number
- 042397
- Position
Unleash the full potential of your machine with the FMF Factory 4.1 RCT Exhaust System. This full system delivers unparalleled performance, durability, and a distinctive sound that sets you apart from the competition. Crafted with precision and engineered for maximum power gains, the Factory 4.1 RCT will transform your riding experience.
Description
The FMF Factory 4.1 RCT Exhaust System utilizes Resonance Chamber Technology (RCT) featuring a patented core shape to reduce decibels while maximizing power output across the entire power range. Internal ducts increase internal volume, optimizing exhaust flow for noticeable power gains. FMF's Factory Forward Engineering centralizes mass, minimizing the risk of damage in case of a crash. The innovative rear end cap allows for easy installation of tuning tip inserts or a spark arrestor with the removal of just four screws. The system is constructed from a combination of high-quality materials, including a stainless steel header and an aluminum muffler body with a carbon fiber end cap, ensuring both performance and longevity. Meets AMA and FIM sound requirements with included QuietCore 94 dB insert.
Features & highlights
- Resonance Chamber Technology (RCT) lowers decibels and maximizes power output.
- Internal ducts improve exhaust flow for power gains throughout the power range.
- Factory Forward Engineering centralizes mass and reduces crash damage.
- Innovative end cap facilitates easy installation of tuning tips or spark arrestors.
- Meets AMA and FIM sound requirements.
- Includes QuietCore 94 dB insert for noise reduction.
- Proudly made in the U.S.A.
Technical specifications
- Brand: FMF
- Product Name: Exhaust System
- Type: Full System
- Design/Configuration: Single Canister
- Muffler Material: Aluminum
- Pipe Material: Stainless Steel
- Muffler Color/Finish: Natural
- End Cap Color/Finish: Carbon Fiber
- Material: Aluminum, Carbon Fiber, Stainless Steel
Important to know
Please note: This exhaust system will not pass 2025 FIM sound regulations.
- Brand
- FMF
- Vendor part number
- 042397
- Product name
- Exhaust System
- Muffler material
- Aluminum
- Material
- Aluminum, Carbon Fiber, Stainless Steel
- Type
- Full System
- Units
- Each
- Pipe material
- Stainless Steel
Free shipping to a GLS parcel shop or parcel box on orders over €200.
We ship your order as quickly as we can. Orders are usually packed within 24 hours on weekdays.
You have a 14-day right of return. Read more
Certified e-mærket web shop
