Torqhead

    #efi connection

    #efi connectors

    #gm micro 64 terminal

    #lt1 optispark delete kit

    #gm pcm connectors

    #efi live

    #efilive

    #autocal

    #auto cal

    #efi live tuner

    #psi conversion

    #psi performance

    #ls1 standalone wiring harness with 4l60e

    #ls wiring harness

    #ls swap harness

    #speartech

    #speartech wiring harness

    #benchtop programming harness

    #gm ecm reprogramming

    #8l90 transmission swap

    #torqhead

    #torque head lt1

    #lt1 optispark eliminator

    #optispark delete