Factory 4.1 RCT Exhaust Silencer 25-25 Kawasaki KX 250 F X - FMF 042412

The FMF Racing Factory 4.1 RCT Titanium Anodized Slip-On Exhaust with Carbon Cap (042412) is engineered to deliver competitive performance gains and weight reduction for cutting-edge motocross and cross-country machines. Utilising the latest FMF Resonance Chamber Technology™ inside and out, this exhaust system features a shorter, forward-positioned design for reduced crash vulnerability and optimised mass centralisation. Manufactured entirely in Southern California from proprietary aerospace-grade titanium and carbon, the Factory 4.1 RCT sets a benchmark for quality, durability, and advanced tuning.

Features

• Advanced FMF Resonance Chamber Technology™ for optimum power delivery
• Short, centralised design reduces crash damage and improves handling
• Crafted exclusively from aerospace grade titanium and carbon fibre
• Blue anodised titanium muffler with carbon fibre end cap for reduced weight
• Massive power gains across the entire RPM range
• Significant overall weight savings compared to stock
• Rapid Tuning System (RTS) for easy adjustments
• 94dB quiet insert and spark arrestor screen included
• Manufactured 100% in Southern California for assured quality
• Closed course use only

Specifications

• Item ID: 042412
• Type: Slip-On
• Configuration: Single
• Construction: Titanium
• Finish: Black Anodised
• Midpipe: Titanium
• Endcap: Carbon fibre
• Spark Arrestor: Screen insert (included)
• Quiet Insert: 94dB insert (included)
• Carb Warning: No

Vehicle Fitment

Kawasaki

• KX250F (2025)
• KX250X (2025)