Factory 4.1 RCT Exhaust Silencer 19-26 Honda CRF 125 F Big Wheel - FMF 041594

Delivering massive power gains throughout the RPM range, the FMF Racing Factory 4.1 RCT Slip-On Muffler (041594) is engineered for optimal performance on closed courses. Built with aerospace-grade materials and innovative FMF Resonance Chamber Technology™, this 100% American-made exhaust minimises overall length for improved crash resistance and mass centralisation. The natural aluminium muffler, paired with a robust stainless steel midpipe and endcap, offers significant weight savings without compromising durability or power. Compatible with both OEM and FMF headers, this slip-on provides versatility and comes with a screen-type spark arrestor.

Features

• Advanced FMF Resonance Chamber Technology™ for enhanced power and torque
• Shorter profile minimises crash damage and supports Factory Forward Engineering
• Natural aluminium muffler with carbon end cap for lightweight durability
• Compatible with both FMF and OEM headers
• Easy installation with Rapid Tuning System (RTS)
• Includes screen insert spark arrestor; quiet insert available separately
• Designed for closed course use only

Specifications

• Item ID: 041594
• Type: Slip-On
• Configuration: Single
• Material: Aluminium muffler, stainless steel midpipe and endcap
• Finish: Natural
• Spark Arrestor: Screen insert (included)
• Quiet Insert: Sold separately
• Carb Warning: No
• Intended Use: Closed course only

Vehicle Fitment

Honda

• CRF125F (2019–2026)
• CRF125F Big Wheel (2019–2024)