Fmf Factory 4.1 Rct Exhaust System Race
Fmf Factory 4.1 Rct Exhaust System Race
Available in stock (7)
-
Estimated delivery: Feb 04 - Feb 08
About this product
About this product
The FMF Factory 4.1 RCT Exhaust System delivers unparalleled performance and durability for closed course competition. Engineered with precision and manufactured in Southern California, this exhaust system is designed to enhance your motorcycle's power and handling.
Description
The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally, optimizing exhaust flow and maximizing power output. Its shorter overall length reduces the risk of damage during crashes and complements Factory Forward Engineering by positioning the muffler closer to the engine for improved mass centralization. Constructed entirely from aerospace-grade materials, this exhaust system meets stringent specifications, ensuring exceptional strength and longevity. The stainless steel pipe and carbon fiber end cap provide a combination of lightweight performance and aggressive styling. The anodized gray muffler finish adds a touch of visual appeal. Experience the competitive edge with the FMF Factory 4.1 RCT Exhaust System.
Features & highlights
- Optimized exhaust flow with FMF Resonance Chamber Technology™ for maximum power.
- Shorter design minimizes crash damage and improves mass centralization.
- Aerospace-grade materials ensure exceptional durability and performance.
- Stainless steel pipe construction for superior strength and heat resistance.
- Carbon fiber end cap provides a lightweight and stylish finish.
- Manufactured entirely in Southern California to exacting standards.
- Designed for closed course competition use.
Technical specifications
- Brand: FMF
- Product Name: Exhaust System
- Type: Race
- Design/Configuration: 1-Into-1 System
- Pipe Material: Stainless Steel
- Muffler Color/Finish: Gray, Anodized
- End Cap Material: Carbon Fiber
- End Cap Color/Finish: Black
Important to know
This exhaust system is designed for closed course competition use only and 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
042413
Exhaust System
Carbon Fiber
Race
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.

