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FiTech 37001 Retro LS EFI Kit 600HP w/Trans Control


  • $2,073.86 CAD

FiTech Retro LS EFI Kit 600HP w/Trans Control Classic Carburetor Gold

FiTech Fuel Injection Retro LS Complete Self Tuning Induction Systems for LS engines designed for the do-it-yourself Hot Rodder to the professional EFI tuner!

This system is ready to go with the needed wiring harness and sensors to get you on the road easily and faster than any system on the market today. Forget sourcing mismatched parts and cutting and splicing old harnesses and re-flashed ECU’s from “Craigs List” tuners. FiTech’s Retro LS is a complete throttle body kit, suitable for that junkyard 5.3 to a stroker 427, we have you covered! Check out the list of features and you will wonder why it’s never been so simple to ditch that old factory hardware or top off that fresh long block and give your LS swapped vehicle look that old school carbureted look with the EFI technology and reliability.

A List of features of the Retro LS Kit 600HP w/Trans Control System:

  • Classic Carburetor Gold Finish.
  • Annular discharge.
  • Windshield Mount for control.
  • Flow matched 80 lbs injectors.
  • Self-learning ECU with Touch Screen controller for easy setup and configuration.
  • Semi sequential fuel and full spark control.
  • Bosch wideband controlled (Self-learning).
  • 24X and 58X crank and cam compatible.
  • 1 BAR MAP Sensor – TPS – IAC Sensor.
  • Speedometer Output Driver for most speedometers.
  • On the fly programmable target AFR and Timing.
  • Custom cam friendly.
  • Knock Sensor Control.
  • Available Transmission Control feature is suitable for 4L60, 4L65, or 4L80 G.M. transmissions.
  • Compatible with E-85 gasoline
  • All Go-EFI’s feature Voltage Control fuel pump control. This feature reduces the voltage to the pump under low load conditions such as idle and cruise thus reducing noise and heat. This will extend the life of your pump and keep the fuel in the tank cooler and your ears from ringing!
  • Go-EFI Systems feature Wet flow technology and have a unique Swirl Spray Annular discharge design that assures COMPLETE ATOMIZATION!! Check out our videos, you need to see it.
  • Air Fuel ratios can be optimized on the fly as you drive! Try that with your Carb.
    37001 Basic Kit Contents
    • Classic Gold Die-Cast Throttle body 
    • Hand-held Controller
    • Windshield Mount 
    • Wideband O2 Sensor
    • Coolant Temp Sensor
    • Self Learning ECU
    Go EFI Systems Manual
    Quick Start Guide – Handheld Controller
    Handheld Controller Feature Definitions
    FiTech EFI Nitrous Instructions


    FiTech Throttle Body dimensions




    Check out technical sizes and drawings -> HERE

    Be the first car guy to actually read the instructions -> HERE

    Still thirsting for more info?  Read the Quick Start Guide -> HERE

    Note that this EFI system can also be used with an engine compartment mounted Fuel Command Center.



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