Fmf Q4 Series Slip-on Muffler With Spark Arrestor
Fmf Q4 Series Slip-on Muffler With Spark Arrestor
Available in stock (10)
-
Estimated delivery: Feb 05 - Feb 09
About this product
About this product
The FMF Q4 Series Slip-On Muffler delivers quiet power and enhanced performance for off-road enthusiasts. Designed with advanced engineering, the Q4 precisely locates baffles and chambers to effectively absorb sound without sacrificing power.
Description
Developed through years of championship off-road racing, the FMF Q4 Series Slip-On Muffler provides a significant improvement in power-to-weight ratio thanks to its reduced mass. The twin-stage core design not only lowers sound output but also extends the life of the packing material, ensuring long-lasting performance. This muffler offers quiet power with minimal sacrifice, making it ideal for riders who need a balance of performance and sound reduction. The included spark arrestor ensures safe operation on trails and in areas where spark arrestors are required. Upgrade your motorcycle's exhaust system with the FMF Q4 and experience the difference in both power and sound.
Features & highlights
- Advanced engineering optimizes baffle and chamber placement for superior sound absorption.
- Reduced mass enhances the motorcycle's power-to-weight ratio for improved acceleration.
- Twin-stage core design minimizes sound output and prolongs packing material lifespan.
- Developed through years of championship-winning off-road racing experience.
- Comes standard with a spark arrestor for safe trail riding.
- Stainless steel and aluminum construction ensures durability and corrosion resistance.
Technical specifications
- Brand: FMF
- Product Name: Muffler
- Type: Slip-On
- Muffler Material: Aluminum
- Pipe Material: Stainless Steel
- End Cap Material: Stainless Steel
- End Cap Style: Conical
- Muffler Color/Finish: Raw
- Features: with Spark Arrestor
- Weight: 2.59 kg (5.7 lb)
Important to know
Please note: This muffler 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
042321
Muffler
2,59 kg (5,7 lb)
Aluminum
Stainless Steel
with Spark Arrestor
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.

