Factory 4.1 RCT Exhaust Silencer 10-13 Yamaha YZ 250 F - FMF 044365

The FMF Racing Factory 4.1 RCT Titanium Anodized Slip-On with Carbon Cap sets the benchmark for exhaust performance, featuring advanced Resonance Chamber Technology™ and innovative Factory Forward Engineering. Designed and manufactured in Southern California from aerospace-grade titanium, this slip-on significantly reduces weight while maximising power gains across the entire RPM range. Its compact, blue anodised body and carbon end cap not only enhance mass centralisation and crash resilience but also offer a modern aesthetic for demanding professional and amateur riders alike.

Features

• Aerospace-grade, blue anodised titanium muffler with carbon end cap for optimal strength and weight reduction


• Incorporates FMF Resonance Chamber Technology™ for increased performance and power delivery


• Factory Forward Engineering for better mass centralisation and reduced crash vulnerability


• Massive power gains across the RPM range


• Significant weight savings compared to stock systems


• New Rapid Tuning System (RTS) for simplified installation and adjustments


• Designed exclusively for closed course competition


• Spark arrestor (screen insert) and 94dB quiet insert included

Specifications

• Item ID: 044365


• Configuration: Single, slip-on system


• Construction: Titanium


• Finish: Blue anodised


• Midpipe Material: Titanium


• Endcap Material: Carbon


• Spark Arrestor: Screen insert included


• Quiet Insert: 94dB insert included


• Weight: 4.4 lbs (approx. 2 kg)


• Intended use: Closed course only


• No carb compliance warning

Vehicle Fitment

Yamaha

• YZ250F (2010–2013)