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Learn MoreThe 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(s) 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.
Note: For closed course competition use only. Not intended for street use.
Product Variant | Manufacturer Part # |
---|---|
Aluminum With Carbon Fiber End Cap | 045628, 044464, 045647 |
Aluminum With Stainless Steel Mid Pipe | 045472, 041517 |
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap | 042290, 042291, 042292, 043320, 044382, 044427, 042330, 045558, 045594, 043364, 044443, 042369, 044453, 045632, 041602, 042394 |
Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap And Side Panel | 041525 |
Blue Anodized Titanium With Carbon End Cap | 041546, 041603, 042396 |
Blue Anodized Titanium With Carbon Fiber End Cap | 044409, 045586, 044466, 045648, 045668 |
Blue Anodized Titanium With Titanium Mid Pipe | 044429, 045596 |
Blue Anodized Titanium With Titanium Mid Pipe And Carbon Fiber End Cap | 042259, 042267, 042286, 045561, 044365, 044400, 045570, 042371, 044455 |
Natural Titanium With Titanium Mid Pipe And Side Panel | 041527 |
Stainless Steel With Carbon End Cap | 042374 |
Stainless Steel With Carbon Fiber Cap | 043372 |
Titanium Anodized With Carbon Fiber Cap | 042376, 043373, 045629, 045633 |
WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.