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Developed around an over-sized K&N high-flow air filter that is designed to boost performance
maximum breathability and airflow
Low Load (cruising) Fuel Maps
Black matte finishing
Firm compound is used for the flange
FMF Factory 4.1 RCT Muffler - Aluminum 045647 1821-2000 Spring Puller Developed around an over-sized K&NThe Factory 4. 1 RCT incorporates FMF's Resonance Chamber Technology both internally and externally In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their 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 their exacting specifications and is manufactured 100% at their
