The LT4 is a FUEL ONLY ecu and will not control ignition. It is designed for use on engines with stand alone ignition systems or as a piggy back system that just controls fuel delivery on cars that still retain the stock fuel/ignition ECU but with the stock injector outputs disabled.

It features 2x fuel injector peak and hold outputs, with 2x auxillary output for fans/nitrous etc...

The LT-4 can be run from 2-4 injectors.

Additional features include:
• Easy to install.
• Fuel only computer.
• Comes with base maps installed.
• Uses original sensors on the engine.