Terminator X Max MPFI System GM LS 24X/1X

The Holley Terminator X Max is an advanced Electronic Fuel Injection (EFI) kit for GM LS engines, replacing factory ECUs with a powerful self-learning system using Holley EFI's proven technology. It features real-time fuel map learning, high-impedance injector drivers, an integrated 1-bar MAP sensor, and four programmable inputs/outputs. Part number 550-927 specifically includes control for 4L60E or 4L80E automatic transmissions and Drive-By-Wire (DBW) throttle bodies. It comes pre-loaded with base maps for common LS engine configurations for quick setup. A 3.5-inch touchscreen LCD handheld provides an easy-to-use calibration wizard, tuning, and gauge display. For advanced users, Holley EFI's software suite offers full laptop access. Suitable for various LS builds, from budget projects to boosted race cars.