This harness and computer are for a stock or nearly stock 2.2L Ecotec. I.E. stock injectors and stock throttle body. This includes a speed density tuned ECM. The controller is an OEM P11 and includes a performance tune based off of hundreds of dyno hours. Custom E85 and Race Gas tunes are available for an additional fee.
This system will work with all 2.2L L61 Ecotecs [pre-2006] running the 24x reluctor wheel and single coil pack and cable throttle body. It will not work on the later 2007 L61 engines with individual coil packs.. It comes with a full diagram and labels all connectors.