Fmf Factory 4.1 Rct Slip-on Muffler
Fmf Factory 4.1 Rct Slip-on Muffler
Available in stock (11)
-
Estimated delivery: Feb 04 - Feb 08
About this product
About this product
Unleash the full potential of your motorcycle with the FMF Factory 4.1 RCT Slip-On Muffler. This high-performance exhaust upgrade delivers significant power gains and weight savings, enhancing your riding experience both on and off the track.
Description
The FMF Factory 4.1 RCT (Resonance Chamber Technology) muffler utilizes advanced internal and external resonance chambers to optimize exhaust flow and maximize power output across the entire RPM range. FMF's Factory Forward Engineering centralizes mass by positioning the muffler closer to the engine, improving handling and reducing the risk of crash damage due to its shorter overall length. Constructed from aerospace-grade aluminum, the Factory 4.1 RCT meets stringent quality standards and is manufactured entirely in FMF's Southern California facility. The slip-on design ensures easy installation, allowing you to quickly upgrade your bike's performance and aesthetics. Experience the difference with enhanced throttle response, improved power delivery, and a race-inspired sound.
Features & highlights
- Experience massive power gains throughout the entire RPM range, translating to improved acceleration and overall performance.
- Enjoy significant weight savings compared to stock mufflers, contributing to improved handling and agility.
- Benefit from the Resonance Chamber Technology (RCT), optimizing exhaust flow for maximum power and efficiency.
- The shorter design is less susceptible to damage in the event of a crash.
- Rapid Tuning System (RTS) facilitates quick and easy maintenance.
- Crafted from aerospace-grade materials, ensuring exceptional durability and longevity.
- Easy slip-on installation allows for a quick and hassle-free upgrade.
Technical specifications
- Brand: FMF
- Product Name: Muffler
- Type: Slip-On
- Muffler Material: Aluminum
- Pipe Material: Stainless Steel
- End Cap Material: Carbon Fiber
- Muffler Color/Finish: Raw
Important to know
This is a slip-on muffler. It is designed to be used with the stock header or an aftermarket header designed for your motorcycle. Check fitment for your specific make, model and year before purchase.
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
045628
Muffler
Aluminum
Carbon Fiber
Aluminum
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.

