Description

The FMF Factory 4.1 Muffler (Part Number: 041592) is engineered to deliver exceptional power and performance for off-road motorcycles. Crafted from premium American materials, this muffler is the lightest available in its class, reducing overall bike weight to enhance handling and agility. The proprietary Chamber Core technology optimizes exhaust flow, resulting in improved horsepower throughout the entire RPM range. Factory Forward Engineering centralizes mass for better balance and control, making it an ideal upgrade for riders seeking both performance and maneuverability.

Designed with versatility in mind, the FMF Factory 4.1 can be customized with performance tuning inserts and a spark arrestor module to meet specific riding needs. It complies with AMA sound requirements on most models, with optional inserts available for additional models or sound preferences. Whether you’re racing or trail riding, this muffler boosts your bike’s output while maintaining durability and quality. Its innovative design ensures a seamless fit and reliable operation, making it a top choice among professional and recreational riders alike.

Features:

• Lightest muffler available, reducing weight for improved handling

• Superior power and performance with horsepower improvements across RPM range

• Exclusive Chamber Core technology for optimized exhaust flow

• Factory Forward Engineering centralizes mass for better balance

• Made from premium American materials for durability

• Customizable with performance tuning inserts and spark arrestor module

• Meet AMA sound requirements on most models, with additional inserts available