FMF Factory 4.1 Aluminium Slip-On Muffler - 042382

Upgrade your motorcycle's performance with the FMF Mini Factory 4.1 Slip-On Muffler. This muffler delivers superior power and improved horsepower throughout the RPM range, giving you a noticeable boost on the track or trail. Crafted from high-quality American materials and featuring advanced Chamber Core technology, the Factory 4.1 is engineered for optimal performance and durability.

Description

The FMF Mini Factory 4.1 Slip-On Muffler is designed to centralize mass, enhancing handling and overall riding experience. Available with titanium end caps, this lightweight muffler significantly improves power and performance across the RPM range. Its Chamber Core technology provides superior exhaust flow, optimizing engine output. Made from premium American materials, the Factory 4.1 ensures lasting durability and top-tier performance. Customize your muffler with optional performance tuning inserts and a spark arrestor module to fine-tune your bike's performance and meet specific riding needs. Note that while it meets AMA sound requirements on most models, it will not pass the 2025 FIM sound regulation.

Features & highlights

• Experience superior power and enhanced horsepower throughout the RPM range.
• Benefit from the lightweight design, improving handling and overall motorcycle agility.
• Enjoy the durability and performance of premium quality American materials.
• Utilize Chamber Core technology for optimized exhaust flow and engine performance.
• Customize your setup with optional performance tuning inserts and spark arrestor module (available separately).
• Meets AMA sound requirements on most models, ensuring compliance and responsible riding.

Technical specifications

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

Important to know

Note: This muffler will not pass the 2025 FIM sound regulation. Performance tuning inserts and spark arrestor module are sold separately.