FMF Factory 4.1 RCT Exhaust Silencer 25-26 Honda CRF 250 R RX - FMF 041618

Delivering massive performance gains across the RPM range, the FMF Factory 4.1 RCT Stainless Slip-On with Carbon End Cap uses advanced Resonance Chamber Technology™ and Factory Forward Engineering to move the muffler closer to the engine. This construction enhances mass centralisation and reduces susceptibility to crash damage thanks to a shorter overall length. Precision built from aerospace-grade materials and manufactured in Southern California, this slip-on provides significant weight savings, rapid tuning features, and a carbon end cap for ultimate strength and style.

Features

• Incorporates FMF Resonance Chamber Technology™ for optimum power and sound
• Engineered for improved mass centralisation and reduced crash damage
• Constructed from premium aerospace-grade aluminium and stainless steel
• Lightweight design with carbon end cap for enhanced durability
• Includes screen-type spark arrestor and 94dB quiet insert as standard
• RTS (Rapid Tuning System) for easy adjustments
• 100% made in the USA
• Closed course use only

Specifications

• Item ID: 041618
• Type: Slip-On
• Configuration: Single
• Muffler Construction: Aluminium, natural finish, grey anodised
• End Cap: Carbon fibre
• Midpipe Material: Stainless steel
• Spark Arrestor: Screen insert included
• Quiet Insert: 94dB insert included
• Carb Warning: No
• Intended Use: Closed course

Vehicle Fitment

HONDA

• CRF250R (2025–2026)
• CRF250RX (2025–2026)

Supplier SKU: 07-4007.F41.A. Supplier availability is subject to change.

Why Buy From FDY Performance?

Shop with FDY Performance Ltd, a UK-based motorcycle parts and accessories retailer. We offer friendly product support and UK delivery options. Please check your bike make, model and year against the fitment information before ordering.