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 machine with the FMF Factory 4.1 RCT Slip-On Muffler. This high-performance muffler is engineered for closed course competition, delivering enhanced power and throttle response.
Description
The FMF Factory 4.1 RCT slip-on muffler is designed to optimize exhaust flow and maximize horsepower. Featuring a durable stainless steel pipe and lightweight aluminum muffler body with a grey anodized finish, this slip-on not only boosts performance but also adds a sleek, professional look to your bike. The carbon fiber end cap provides added durability and style. The included spark arrestor screen insert ensures safe operation in designated areas, while the 94dB insert allows for sound level adjustability. Upgrade your exhaust system with the FMF Factory 4.1 RCT and experience the difference in power and sound.
Features & highlights
- Experience enhanced power and improved throttle response.
- Lightweight aluminum muffler body with a durable grey anodized finish.
- Stylish carbon fiber end cap for a premium look.
- Includes a spark arrestor screen insert for safe operation.
- Comes with a 94dB insert for sound level adjustability.
- Durable stainless steel pipe construction ensures long-lasting performance.
- Designed for closed course competition use.
Technical specifications
- Brand: FMF
- Product Name: Muffler
- Type: Slip-On
- Muffler Material: Aluminum
- Muffler Color/Finish: Grey, Anodized
- End Cap Material: Carbon Fiber
- End Cap Color/Finish: Black
- Pipe Material: Stainless Steel
Important to know
This muffler is designed for closed course competition use only. It will not pass the 2025 FIM sound regulation.
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
042403
Muffler
Aluminum
Carbon Fiber
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.

