Q4 Hex Exhaust Silencer 19-23 Kawasaki KX 450 F X - FMF 042368

The FMF Q4 HEX S/A 042368 is engineered to deliver optimal off-road performance while maintaining exceptionally low sound output. Utilising advanced chamber design, baffles, and exclusive multi-stage packing materials, this slip-on exhaust boosts power across the rev range and meets stringent USFS and FIM World Enduro noise regulations. Its robust, lightweight aluminium and stainless steel construction is purpose-built for the demands of endurance riding, including an integrated spark arrestor for compliance and safety.

Features

• Power gains are delivered throughout the entire RPM range


• Meets USFS and FIM World Enduro sound regulations for quiet operation


• Integrated spark arrestor offers maximum safety for off-road use


• Lightweight, robust aluminium and stainless steel construction


• Designed in the USA for superior off-road durability


• Pounds lighter than the OEM exhaust for better handling


• Quiet insert is included for further noise reduction


• Closed course use only

Specifications

• Item ID: 042368


• Type: Slip-On


• Configuration: Single


• Construction: Aluminium


• Finish: Natural


• Midpipe: Stainless Steel


• Endcap: Stainless Steel


• Spark Arrestor: Screen Insert (included)


• Carb Warning: No


• Quiet Insert: Included


• Weight: 5.5 lbs

Vehicle Fitment

Kawasaki

• KX450F (2019–2023)


• KX450X (2019–2023)