Walbro GSS342 255LPH High Pressure In-Tank Fuel Pump Kit Mitsubishi Evo 7/8/9 (CT9A/CZ4A)

Walbro GSS342 255LPH High Pressure In-Tank Fuel Pump Kit - Mitsubishi Evo 7/8/9 (CT9A/CZ4A)

Walbro's GSS342 has been the go-to fuel pump for performance builds for over two decades, and for good reason. Built by TI Automotive — the global leader in fuel system technology — this 255LPH unit delivers reliable high pressure fuel supply for modified and tuned applications. Whether you're running a modest power upgrade or pushing serious boost, the GSS342 is a proven, direct fit solution that won't let you down.

This listing covers the GSS342 kit with fitment hardware for the Mitsubishi Lancer Evolution 7, 8, and 9 (CT9A / CZ4A). A hardwire kit option is available — select it via the variant selector on this listing. We strongly recommend this addition for any car over 10 years old or making over 400whp.

Key Features

• 255LPH flow rate — suitable for high power forced induction builds
• High pressure output up to 772 kPa (112 psi) with minimal flow loss
• Superior hot fuel handling for consistent performance under heat soak
• Compatible with most fuel types including E85 blends
• Direct fit replacement — uses factory mounting hardware
• Designed and manufactured in the USA to exceed OE specifications
• Includes pump, installation kit, and vehicle-specific fitment hardware

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, trim level, and configuration are confirmed before ordering.

Not sure if this kit suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.