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)