FMF Factory 4.1 RCT Carbone Yamaha WR450F/YZ450F (14-18)

From the outset, Factory 4.1 RCTs stand out from other mufflers thanks to the use of top-of-the-range materials, providing increased power and torque across the entire engine speed range, as well as considerable weight savings compared to the original system.

• Factory 4.1 RCT aluminum muffler
• FMF exhaust weight: 2.36kg
• Stainless steel connecting tube
• Carbon fiber tip
• Spark arrester included
• Closed-course use only
• Optional noise reducer
• New RTS (Rapid Tuning System)
• Compatible with original or FMF manifold