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Tested and Race Proven by the best pit bike/play bike riders on the planet
giving an impact to the engine and beautifully directing the bike
5pc Pilot Jet Kit
23mm exhaust port (valves installed)
FMF Factory 4.1 Mini Slip-On SS w/ Aluminum Muffler - All KLX140 boot Tested and Race Proven byThe Factory 4. 1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our 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 our exacting specifications and is manufactured 100% at