MaxxECU Race - Complete GM LS ECU & Harness Package. Terminated Harness for GM LS Gen III or IV Engines. High Quality Connectors & Wire Loom. Extremely versatile engine control system for powerful engines with up to 8 sequential cylinders or 12 in wasted spark. Faster and easier tuning with built-in wideband lambda, built-in MAP-sensor up to 3 bar / 43.5 psi of boost, E-throttle, 8 EGT, knock sensor inputs and superfast Cortex M3 CPU. Harness Injector Connectors Options: "EV1 Injectors" "EV6 EV14 Injectors".