Muffler Rct 4.1 Anod Tit W/C Endcap Crf 250 '25 0416194. 1 RCT Slip On MufflerThe Factory 4. 1 RCT incorporates FMF Resonance Chamber Technology both internally and externally In addition, achieves a shorter overall length that is less susceptible to crash damage and complementary to 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 exacting specifications and is manufactured 100% at the