Edelbrock Pro-Flo 4+ kit #36120 is an EFI engine management system that greatly simplifies the process of installing a 2013-newer Chrysler 5.7L 6.1L 5.7L Eagle or 6.4L Hemi EFI engine into a non-EFI muscle car truck or hot rod. Pro-Flo 4+ allows you to leave the factory ECU and wiring harnesses at the junkyard by providing a plug-and-play control system that is specially designed for the Gen III Hemi engine implementing drive-by-wire throttle and variable camshaft timing (VCT) that is calibrated for best performance in hot rod engine swap applications. This system also supports variable cam control on all Eagle engines. Pro-Flo 4+ kit #36120 includes an ECU with base calibration; OEM-style wiring harnesses; MAP O2 and IAT sensors. The Pro-Flo 4+ ECU provides mounting versatility with a compact weather-resistant housing and features a unique self-learning capability that adjusts the fuel map as you drive providing optimum performance with no need for laptop tuning or costly dyno sessions. Setup is quick and easy thanks to Edelbrock's E-Tuner 4 software for Android tablets and smartphones. Pro-Flo 4+ for the 2013-newer Gen III Hemi uses a speed-density fueling strategy with an included MAP and IAT sensor. A non-adjustable Alternator Control is set to regulate at 14.5 volts and the system is SRV calibrated for 4 800 RPM also not adjustable. The Pro-Flo 4+ system works with factory intake manifolds as well as most aftermarket intakes including Edelbrock and FAST. Short runner valve actuation is supported. Minimal tuning adjustments are required when the provided base calibration is used giving you great performance right out of the box. Pro-Flo 4+ is covered by a 2-year warranty and is backed by the industry's most extensive technical support team."