FITECH Go EFI 400hp self tuning Throttle Body. Compare to Sniper EFI. Includes the fuel lines, ECU, Harness and Sensors, Handheld. FiTech Go EFI 400 hp self–tuning fuel injection systems have the ECU mounted on the throttle body for greater self-containment, clean installation, and easy setup. These trick systems fit any 4-barrel intake manifold and are designed for use on engines from 150 to 400 hp.FiTech Go EFI 400 hp self–tuning fuel injection systems have the ECU mounted on the throttle body for greater self-containment, clean installation, and easy setup. These trick systems fit any 4-barrel intake manifold and are designed for use on engines from 150 to 400 hp. Currently out of stock. – See Sniper EFI Kits