Fmf Factory 4.1 Rct Slip-on Muffler
Fmf Factory 4.1 Rct Slip-on Muffler
Hurry up, only 1 item left in stock.
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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 Slip-On Muffler. This high-performance exhaust upgrade delivers substantial power gains and a significant weight reduction, enhancing your motorcycle's overall performance and handling.
Description
The FMF Factory 4.1 RCT (Resonance Chamber Technology) muffler utilizes advanced engineering to optimize exhaust flow and maximize power output. FMF's Resonance Chamber Technology is integrated both internally and externally. Its shorter overall length not only minimizes the risk of damage during crashes but also complements FMF's Factory Forward Engineering, which centralizes mass by positioning the muffler closer to the engine. Crafted from aerospace-grade materials and manufactured entirely in FMF's Southern California facility, the Factory 4.1 RCT ensures exceptional quality and durability. Experience massive power gains throughout the entire RPM range and enjoy the benefits of the Rapid Tuning System (RTS) for easy customization. This slip-on muffler offers simple installation and provides a noticeable boost in performance.
Features & highlights
- Experience massive power gains across the entire RPM range, improving acceleration and throttle response.
- Enjoy significant weight savings, enhancing your bike's handling and maneuverability.
- Benefit from the Resonance Chamber Technology (RCT), optimizing exhaust flow for maximum performance.
- Reduce the risk of damage with a shorter muffler design, complemented by Factory Forward Engineering for centralized mass.
- Ensure top-tier quality and durability with aerospace-grade materials and 100% manufacturing in Southern California.
- Customize your exhaust with the Rapid Tuning System (RTS).
Technical specifications
- Brand: FMF
- Type: Slip-On
- Material: Carbon Fiber, Stainless Steel, Aluminum
- End Cap Material: Carbon Fiber
- Pipe Material: Stainless Steel
- Muffler Material: Aluminum
- Muffler Color/Finish: Raw
Important to know
This is a slip-on muffler, designed to work with your existing exhaust system. Please ensure compatibility with your motorcycle model before purchasing.
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
043372
Muffler
Aluminum
Carbon Fiber
Carbon Fiber, Stainless Steel
Slip-On
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.

