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)