Fmf Factory 4.1 Rct Slip-on Muffler
Fmf Factory 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
Unleash the full potential of your machine with the FMF Factory 4.1 RCT Slip-On Muffler. This high-performance exhaust upgrade delivers significant power gains, a substantial weight reduction, and enhanced durability, ensuring you dominate the track or trail.
Description
The FMF Factory 4.1 RCT Slip-On Muffler is engineered for riders who demand the best. Featuring the Rapid Tuning System (RTS), this muffler allows for quick and easy adjustments to optimize performance for various riding conditions. The shorter overall length minimizes the risk of damage in crashes, making it ideal for aggressive riding. Experience massive power gains throughout the RPM range and a noticeable improvement in handling thanks to the significant weight savings. The combination of a titanium muffler body and stainless steel piping ensures exceptional strength and corrosion resistance. Finished with a striking anodized blue and a conical carbon fiber end cap, this muffler not only performs but also looks the part.
Features & highlights
- Experience massive power gains across the entire RPM range, translating to quicker acceleration and improved throttle response.
- Reduce overall weight, improving handling and maneuverability for enhanced control on any terrain.
- Benefit from the Rapid Tuning System (RTS) for easy performance adjustments, allowing you to fine-tune your bike to specific conditions.
- The shorter design reduces the risk of damage from crashes and impacts, ensuring durability in demanding riding scenarios.
- The premium titanium and stainless steel construction guarantees exceptional strength, corrosion resistance, and long-lasting performance.
Technical specifications
- Brand: FMF
- Product Name: Muffler
- Type: Slip-On
- End Cap Material: Carbon Fiber
- End Cap Style: Conical
- Muffler Material: Titanium
- Muffler Color/Finish: Anodized Blue
- Pipe Material: Stainless Steel
Important to know
Please note: This muffler will not pass the 2025 FIM sound regulations. Check local regulations for compliance before purchasing and installing.
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
041587
Muffler
Titanium
Carbon Fiber
Slip-On
Each
Stainless Steel
Conical


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.

