(SMI-IH2-GMT800) Fully Integrated Holley EFI Harness for 03-07 GMT800 Trucks and SUV's

This is a FULLY INTEGRATED Holley EFI Harness, for Terminator X Max or Dominator. Setup for LS equipped 4l60e/4l80e setups. This keeps everything OE working like factory, other than Cruise Control for DBW trucks(need aftermarket module). 4x4, AC, ABS, Instrument cluster, and all works just like OE. Starter is still "tip to start" like the factory uses. This harness does not include holley PCM, wideband sensor, wideband adapter (if using Terminator X), or any tuning cable or device. This harness also does not include the injector harness, but uses any of the Holley style harnesses for your specific application. ZERO WIRE SPLICE needed, it's completely plug and play.  Long lead times apply. Inquire for more information. Deposits or full payment required to get on waiting list.    Please Select your options above. For each sub-harness category, your first sub-harness is included in the original price. Additional sub-harnesses are extra and are available per order. Please read the agreemen