Fmf Factory 4.1 Rct Slip-on Muffler
Fmf Factory 4.1 Rct Slip-on Muffler
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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 system delivers increased power and reduced noise, giving you the edge you need on the track or trail.
Description
The FMF Factory 4.1 RCT Slip-On Muffler utilizes Resonance Chamber Technology (RCT) with a patented core shape to effectively lower decibels while maximizing power output. Internal ducts within the chamber increase internal volume, significantly improving exhaust flow and resulting in noticeable power gains across the entire power range. FMF's Factory Forward Engineering centralizes mass, enhancing the bike's handling and reducing the risk of damage in the event of a crash. The innovative rear end cap allows for easy installation of tuning tip inserts or a spark arrestor with just the removal of four screws. This muffler not only boosts performance but also meets stringent AMA and FIM sound requirements, ensuring compliance without sacrificing power. Made in the U.S.A. with high-quality aluminum and a carbon fiber end cap, this slip-on muffler provides durability and a sleek, aggressive look.
Features & highlights
- Experience increased power across the entire RPM range thanks to Resonance Chamber Technology (RCT).
- Enjoy reduced noise levels without compromising performance.
- Benefit from centralized mass for improved handling and reduced crash damage potential.
- Easily install tuning tips or a spark arrestor with the user-friendly rear end cap design.
- Meets AMA and FIM sound requirements for legal and responsible riding.
- Includes a QuietCore 94db insert for further sound reduction.
- Features a durable aluminum construction with a stylish carbon fiber end cap.
Technical specifications
- Brand: FMF
- Product Name: Muffler
- Type: Slip-On
- Material: Aluminum
- End Cap Material: Carbon Fiber
- End Cap Style: Conical
- Color/Finish: Black
- End Cap Color/Finish: Black
Important to know
- Spark arrestor included.
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
042394
Muffler
Carbon Fiber
Aluminum
Slip-On
Each
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.

