Exclusive muffler for KTM PowerParts used by Troy Lee and BTO KTM teams. 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 FMF's Southern California factory.
- Blue Anodized Titanium Muffler with Carbon End Cap
- New RTS (Rapid Tuning System)
- FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards.
- WHEN PAIRED WITH TITANIUM HEAD AND MID PIPE WEIGHT SAVINGS = 2.5lbs LIGHTER ON 16' 250 SX-F AND 2.6lbs LIGHTER ON 450 SX-F
Can be used with FMF or Stock OEM Header.