KTM EXC-F 350 2012 - 2016 KTM EXC 500 2012 - 2016 Part No. 06-1759.FMF.FTN FMF 045474 The 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 our Southern California factory. -Available in Natural Titanium Muffler with Titanium End Cap � -Massive Power gains throughout the RPM range. -Huge weight savings -New RTS (Rapid Tuning System) -FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards. -Can be used with FMF or Stock OEM Header Notice: Closed Course Use OnlyItem ID: 045474Type: Slip-OnConfiguration: SingleConst: TitaniumFinish: NaturalMidpipe: TitaniumEndcap: TitaniumSpark Arrestor: Screen Insert (included)Carb Warning: noQuiet Insert: 94dB Insert (included)Weight: 4.5 lbs.