Fmf Factory 4.1 Slip-on Muffler

Unleash the full potential of your motorcycle with the FMF Factory 4.1 Slip-On Muffler. Designed for superior power and performance, this muffler delivers improved horsepower across the entire RPM range. Experience the difference in handling and responsiveness with this high-quality upgrade.

Description

Crafted from premium American materials, the Factory 4.1 Slip-On Muffler is available in natural titanium or blue anodized titanium, complete with titanium end caps. The exclusive Chamber Core technology and Factory Forward Engineering centralize mass, significantly improving your bike's handling. Not only is this one of the lightest mufflers available, it also offers customizable performance tuning with optional inserts and a spark arrestor module. While it meets AMA sound requirements on most models, please note that it will not pass the 2025 FIM sound regulation. Upgrade your ride with the FMF Factory 4.1 for noticeable gains in both power and handling.

Features & highlights

• Experience superior power and performance with improved horsepower throughout the RPM range.
• Benefit from enhanced handling due to Factory Forward Engineering that centralizes mass.
• Customize your exhaust with performance tuning inserts and a spark arrestor module (available separately).
• Enjoy the lightweight design, making it one of the lightest mufflers on the market.
• Crafted from premium quality American materials for exceptional durability.
• Available in natural titanium or blue anodized titanium with titanium end caps for a custom look.
• Proprietary Chamber Core technology delivers optimum exhaust flow and performance.

Technical specifications

• Brand: FMF
• Product Name: Muffler
• Type: Slip-On
• Muffler Material: Titanium
• End Cap Material: Stainless Steel

Important to know

• Inserts are available for models that do not meet AMA sound requirements.
• Will not pass 2025 FIM sound regulation.

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 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)