Factory 4.1 RCT Exhaust Silencer 21-26 Honda CRF 450 R RX - FMF 041603

The FMF Racing Factory 4.1 RCT Titanium Anodized Slip-On with Carbon Cap (041603) showcases advanced FMF Resonance Chamber Technology both inside and out, delivering exceptional power gains across the entire RPM range. Designed with a shorter overall length and Factory Forward Engineering, this slip-on system positions the muffler closer to the engine to improve mass centralisation and reduce vulnerability to crash damage. Crafted exclusively from aerospace-grade titanium and finished in stunning blue anodise with a carbon fibre end cap, it delivers high-performance advantages and significant weight savings, all made in California to exacting standards.

Features

• Advanced Resonance Chamber Technology for optimal power delivery


• Centralised mass and shorter length for improved handling and durability


• Aerospace-grade titanium construction with proprietary FMF alloy blend


• Blue anodised titanium muffler with lightweight carbon end cap


• Rapid Tuning System (RTS) for quick adjustability


• Massive power gains and substantial weight reduction


• Includes screen-type spark arrestor and 94dB quiet insert for noise control


• Designed and manufactured entirely in Southern California


• Closed course use only

Specifications

• Item ID: 041603


• Type: Slip-On


• Configuration: Single


• Construction: Titanium


• Finish: Blue Anodised


• Midpipe: Titanium


• Endcap: Carbon


• Spark Arrestor: Screen insert (included)


• Quiet Insert: 94dB insert (included)


• Weight: 7.5 lbs


• Carb Warning: No

Vehicle Fitment

HONDA

• CRF450R (2021–2026)


• CRF450RX (2021–2026)