FMF Racing Factory 4.1 RCT MegaBomb Complete Exhaust System

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. In addition, it achieves a shorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet FMF's exacting specifications and is manufactured 100% at FMF's Southern California factory.

• Made from the highest quality blend of alloy grade titanium
• RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output
• Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power
• FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage
• Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
• Features FMF's Rapid Tuning System
• Massive power gains throughout the RPM range
• Huge weight savings
• QuietCore 94db insert included
• Spark arrestor included in muffler
• Can be used with FMF or stock O.E.M header
• Meets AMA and FIM sound requirements
• Made in the USA

FMF MegaBomb Header:

•  Made from premium American materials
• Stainless steel motorcycle/ATV 4-stroke header with FMF's patented MegaBomb module
• Used by factory teams and is a great compliment to the FMF Factory 4.1 dirt bike or quad muffler
• Increases output from stock motor as much as 15%
• Gain up to 3 horsepower with a single bolt-on mod
• Produces long header torque and short header over-rev
• Reduces sound output by as much as 1.5dB
• Less susceptible to damage than a long header
• Quality construction for maximum durability

Note: For closed course competition use only. Not intended for street use.

Note: Image for reference only. Actual product may vary according to vehicle.