Factory 4.1 RCT Aluminum Slip On Exhaust - For 14-17 YZ450F & 16-18 WR450F

For 14-17 YZ450F & 16-18 WR450F

• Color: Silver
• End Cap Material: Carbon Fiber
• Finish: Aluminum
• Material: Carbon Fiber / Aluminum / Stainless Steel
• Mid Pipe Material: Stainless Steel
• Mounting Style: Slip-On
• Muffler Sleeve Material: Aluminum
• Removable Spark Arrestor: Yes
• Type: Muffler Assembly

• Natural finish aluminum muffler sleeve
• Stainless steel mid pipe
• Carbon fiber end cap
• Spark arrestor included
• Quiet insert available (sold separately)
• 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

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.