Powerjection III is the pioneer in direct-fit carburetor replacement EFI systems. The revolutionary design of the Powerjection III provides tuning for any level of performance enthusiast. The Adaptive Learning system designed by Professional Products uses real time data from a wide band oxygen sensor to self tune the system while driving. For those who want a greater deal of control, or have higher power engines, the Powerjection III is laptop tunable, providing a virtually unlimited capacity to tune the engine at all rpm ranges. All this with a minimum of wiring and underhood clutter. Satin finish product is the base unit suitable for vehicles already set up for fuel injection. Comes with throttle body, integrated control unit, oxygen sensor and exhaust bung kit for the oxygen sensor.