Fmf 4.1 Rct Slip-on Muffler
Fmf 4.1 Rct Slip-on Muffler
Available in stock (4)
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Estimated delivery: Feb 04 - Feb 08
About this product
About this product
The FMF 4.1 RCT Slip-On Muffler delivers top-tier performance and durability for your motorcycle. Engineered with advanced technology and premium materials, this muffler enhances exhaust flow and power output.
Description
Experience the cutting-edge design of the Factory 4.1 RCT, integrating FMF's Resonance Chamber Technology™ both inside and out. This innovative approach optimizes exhaust flow, resulting in increased horsepower and torque. The shorter overall length minimizes the risk of damage from crashes, while the muffler's positioning closer to the engine centralizes mass for improved handling. Constructed entirely from aerospace-grade materials, this muffler meets stringent specifications for exceptional strength and longevity. Proudly manufactured in FMF's Southern California facility, the 4.1 RCT Slip-On Muffler stands for quality and performance. Upgrade your motorcycle with a product built to excel under the most demanding conditions. The anodized blue finish and carbon fiber end cap add style to performance.
Features & highlights
- Utilizes FMF Resonance Chamber Technology™ (RCT) for optimized exhaust flow and enhanced power.
- Shorter design minimizes crash damage and centralizes mass for improved handling.
- Crafted from aerospace-grade materials for exceptional durability and performance.
- Manufactured entirely in Southern California, ensuring top-notch quality and craftsmanship.
- Features a stylish anodized blue muffler body and a carbon fiber end cap.
- Slip-on design provides easy installation.
Technical specifications
- Brand: FMF
- Product Name: Muffler
- Type: Slip-On
- Muffler Material: Titanium
- End Cap Material: Carbon Fiber
- Muffler Color/Finish: Anodized Blue
- End Cap Color/Finish: Black
Important to know
Please note: This muffler does not meet the 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
045690
Muffler
Titanium
Carbon Fiber
Slip-On
Each


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.

