By far your easiest, most time-effective wiring solution for race cars or engine swaps. Each Terminated Engine Harness is made to suit a specific engine and comes terminated with ECU connectors at one end and all engine connectors at the other. All your factory connectors are labelled, crimped and terminated at exactly the right length to help you be up and running in no time. An efficient Haltech Plug'n'Play product that allows you to be up and running in just a few hours. The quick start guide will walk you through installation of the Haltech Plug'n'Play harness into your vehicle. The guide is accompanied by the full ECU manual and Software located on the CD or USB key provided with the ECU to refer to while completing your installation and configuration.