This LS3 Controller and Wiring Harness Kit includes All the components required to run you GM Performance PArts crate engine.

The kit includes:

• Engine Harness
• Controller
• Mass Air Flow Meter
• MAss Air Flow Meter Mounting Boss
• Accelerator Pedal Assembly
• Oxygen Sensor [2 per kit]
• Oxygen Sensor Mounting Boss [2 per kit]
• Instruction Sheet

This Controller and Wiring Harness kit allows you to keep the standard electronic throttle body which is vastly superior over manual throttle body's. The electronic throttle body gives you precise control over the throttle, where as mechanical throttle body conversions are not as precise, thus giving you less control over the engine. The kit also saves countless days/weeks building bespoke Wiring harness's and control units.