FMF Factory 4.1 RCT Exhaust Silencer 21-24 Kawasaki KX 250 F X - FMF 042394

The FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap is engineered for enthusiasts seeking leading-edge performance and durability. Featuring innovative Resonance Chamber Technology™, this slip-on exhaust delivers increased power across the RPM range while offering substantial weight reduction. The advanced Factory Forward Engineering positions the muffler closer to the powerplant for enhanced mass centralisation and improved balance, all in a robust package constructed from aerospace-grade materials at FMF's California facility.

Features

• Designed exclusively for closed course competition
• Incorporates FMF Resonance Chamber Technology™ for refined power delivery
• Shorter overall length enhances durability and minimises crash susceptibility
• Factory Forward Engineering promotes mass centralisation by positioning the muffler nearer the engine
• Rapid Tuning System (RTS) for quick adjustments
• Manufactured using aerospace-grade aluminium and stainless steel, with carbon end cap
• Includes a screen-type spark arrestor and 94dB quiet insert
• Significant weight savings improve handling and responsiveness

Specifications

• Type: Slip-On
• Configuration: Single
• Construction: Aluminium
• Finish: Natural
• Midpipe: Stainless Steel
• End Cap: Carbon
• Spark Arrestor: Screen Insert (included)
• Quiet Insert: 94dB (included)
• Weight: 7.5 lbs

Vehicle Fitment

Kawasaki

• KX250F (2021–2024)
• KX250X (2021–2024)

Supplier SKU: 06-9950.FMF.FAC. 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.