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)