Fmf Factory 4.1 Rct Exhaust System Full System
Fmf Factory 4.1 Rct Exhaust System Full System
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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 exhaust system delivers unparalleled power gains and weight savings.
Description
The FMF Factory 4.1 RCT Exhaust System utilizes FMF's Resonance Chamber Technology™ both internally and externally, optimizing exhaust flow and maximizing power output across the entire RPM range. Its shorter overall length not only reduces the risk of crash damage but also complements FMF's Factory Forward Engineering, centralizing mass by positioning the muffler closer to the engine. Constructed entirely from aerospace-grade materials at FMF's Southern California factory, the Factory 4.1 RCT meets the highest standards of quality and performance. The included MegaBomb header further enhances exhaust flow and boosts power. Experience the difference with the FMF Factory 4.1 RCT—where cutting-edge technology meets uncompromising craftsmanship.
Features & highlights
- Resonance Chamber Technology™ optimizes exhaust flow and boosts power.
- Shorter design minimizes crash damage and centralizes mass.
- Aerospace-grade materials ensure exceptional durability and performance.
- Manufactured entirely in FMF's Southern California factory.
- MegaBomb header included for enhanced exhaust flow.
- RTS (Rapid Tuning System) allows for quick and easy adjustments.
- Spark arrestor screen insert included for off-road use.
Technical specifications
- Brand: FMF
- Product Name: Exhaust System
- Type: Full System
- Muffler Material: Titanium
- Pipe Material: Stainless Steel, Titanium
- End Cap Material: Carbon Fiber
- Muffler Color/Finish: Anodized Blue
Important to know
Please note: This exhaust system will not pass the 2025 FIM sound regulation.
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
045653
Exhaust System
Titanium
Carbon Fiber
Stainless Steel, Titanium
Full System
Each
Stainless Steel, Titanium


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.

