Contact Us
Orders over $79.00 will receive free shipping. This is a residential delivery service, deliveries Monday through Friday from 9:00am to 8:00pm.
Learn MoreUnfortunately, we no longer carry this item. It may be discontinued or have just sold out.
Please contact Customer Service (1-888-676-8853) or search for another product if you continue to see this message.
Find other: FMF Full System Exhausts
The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. It starts at the center with a new core - a patent pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. In addition, it achieves a shorter overall length that is less susceptible to crash damage and complementary to the Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. Visible changes to the exterior include a redesigned canister to increase internal capacity for the maximum volume of packing material. The packing itself was not overlooked - a proprietary blend formulated for superior durability and sound attenuation. The final component is a new rear endcap engineered for simple tuning adjustments incorporating a snap ring feature to secure the standard and optional inserts. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet FMF's exacting specifications and 100% manufactured at their Southern California factory.
The science behind the Megabomb header may be FMF's greatest engineering accomplishment to date. You can bolt on a Megabomb for as much as a 3 hp boost, plus the Megabomb actually reduces noise levels by as much as 1.5 dB. Used by Factory Teams, the Megabomb is the next level technology you can have today.