Fmf Factory 4.1 Rct Exhaust System Full System
Fmf Factory 4.1 Rct Exhaust System Full System
Available in stock (8)
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Estimated delivery: Feb 04 - Feb 08
About this product
About this product
Unleash the full potential of your machine with the FMF Factory 4.1 RCT Exhaust System. Engineered for maximum performance and durability, this full system delivers significant power gains across the entire RPM range. Experience the difference that precision engineering and top-tier materials make.
Description
The FMF Factory 4.1 RCT exhaust system leverages FMF's Resonance Chamber Technology™ (RCT) to optimize exhaust flow, resulting in substantial horsepower and torque increases. Its shorter overall length minimizes the risk of damage from crashes, while FMF's Factory Forward Engineering centralizes mass by positioning the muffler closer to the engine. Crafted from aerospace-grade materials to meet FMF's stringent standards, this exhaust system ensures exceptional reliability and longevity. The included MegaBomb header further enhances exhaust scavenging, contributing to improved engine performance. Benefit from the Rapid Tuning System (RTS) for easy maintenance and tuning adjustments. Each system is proudly manufactured in FMF's Southern California facility, guaranteeing superior quality and craftsmanship.
Features & highlights
- Experience massive power gains throughout the entire RPM range, enhancing acceleration and overall performance.
- Benefit from significant weight savings, improving handling and maneuverability.
- Minimize crash damage with a shorter overall length and robust construction.
- Optimize exhaust flow and engine performance with FMF's Resonance Chamber Technology™ (RCT).
- Simplify maintenance and tuning with the Rapid Tuning System (RTS).
- Enhance exhaust scavenging and further boost power with the included MegaBomb header.
- Includes a spark arrestor screen insert for responsible off-road riding.
Technical specifications
- Brand: FMF
- Product Name: Exhaust System
- Type: Full System
- End Cap Material: Carbon Fiber
- Muffler Material: Aluminum
- Pipe Material: Stainless Steel
- Muffler Color/Finish: Raw
- Material: Carbon Fiber, Stainless Steel
Important to know
Please note: This exhaust system will not pass 2025 FIM sound regulations.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
FMF
045634
Exhaust System
Aluminum
Carbon Fiber
Carbon Fiber, Stainless Steel
Full System
Each
Stainless Steel


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

