At FMF we don't just mock-up product to be the first out to market. We rely on the industries hardestworking R&D process. We deliver American made performance and innovation.
Introducing a full line of FMF exhaust components for the 2010 CRF 250-ready for competition.
FACTORY 4.1
SLIP ON - FROM $499.99 SYSTEM - FROM $749.99
Premier MX racing exhaust
Race tested for proven reliability and performance
Includes Park Legal 96dB and AMA Pro Race legal
94dB insert
Lightest full system available
Available in carbon, titanium natural or blue anodized finish
Utilizes the new RCT - Resonance Chamber Technology
4.1 slip on uses FMF or stock header
Easily serviced for repackingPOWERCORE 4
SLIP ON - $299.99
Used of MX and Offroad riding
Value priced slip-on exhaust
Aluminum performance muffler with durablestainless steel components
Includes park legal 96dB insert and spark arrestor
AMA pro race legal 94dB insert available for purchase
Easily serviced for repacking
Use with FMF or stock headerQ4 / Ti Q4 PATENT #7552797
SLIP ON Q4 - $359.99 SLIP ON Ti Q4 - $399.99
Used for Park and Off-Road Racing
Max Sound Output 96dB most models well below 93dB
Developed over years of Championship off-road racing
In Most cases, the only exhaust accepted by the USFSU.S. Forest Service
Removable spark arrestor included
Official exhaust of soundoffmc.com
Use with FMF or stock headerMEGABOMB PATENT #7510050
TITANIUM - $349.99
Increases output from stock motor as much as 15%
Produces long header torque and short header over-rev
Reduces sound output as much as 1.5dB
Made from premium American TiMetal material
Patented designPOWERBOMB PATENT #7510050
TITANIUM - $299.99 STAINLESS - $199.99
Up to 10% horsepower gain
Patented technology
Pre-muffler lowers sound output as much as 1.5dB
The most copied header in the world