FiTech LS Self-Tuning Intake Kit LS3 Ultimate With Transmission Control 500HP



  • Cable-Operated Throttle Body
  • Ultimate EFI Upgrade
  • Enhanced Shift Performance
  • For LS3 Engines

FiTech LS3 Ultimate LS Self-Tuning Intake Kit with the Transmission Control 500HP.

If you're a do-it-yourself kind of enthusiast, then the FiTech LS3 Ultimate LS Self-Tuning Intake Kit 70012 with Transmission Control 500HP is perfect for you. Get back on the street with this conversion kit to jump your LS3 engine up to speed with the rest of the aftermarket world. Whether you're working on a Restomod or your latest vehicle, this feature is suitable for 4L60, 4L65, 4L80 or 4L85 GM transmissions. 

The Ultimate LS 500HP Kit with trans control for LS3 engines is a complete self-tuning induction system for LS engines, ready-to-go. Rather than source mismatched parts and modifying the harnesses, FiTech gives you the Ultimate EFI to ditch that old factory hardware or top off that fresh long block. 

This intake manifold Kit comes with electronic transmission control that can be used when operating a GM electronically controlled automatic transmission. The Ultimate LS ECU has the ability to control the shift point and shift firmness when to downshift properly. If using transmission control connect the two sides of the trans connector to the sub-harness and connect this to the connector on the transmission. Once connected to the transmission you are ready. If not using transmission control leave the connectors untouched.

- Intake manifold will fit Rectangle Port LS3 heads
- Transmission control feature is suitable for 4L60, 4L65, 4L80 or 4L85 GM transmissions
- Intake manifold is 6.5 inches tall
- 92mm high flow cable operated throttle body sits at 7 degrees
- Throttle body will clear any stock truck accessories depending on the type of water pump

*Small Block V8 GEN. III/IV LS-based Chevrolet street and performance engines with a 1500-6500 rpm power-band up to 500 HP to the flywheel.
*If there is truck water pump accessory clearance interference, you will need to get a new water pump bracket.

Please Note: Coil packs and a supported fuel system (i.e., part number FI50004 or other comparable fuel systems) are REQUIRED, not included, for the installation of this self-tuning kit.

California Residents: Proposition 65 Warning

Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:

  • 1965 and older U.S. manufactured California certified vehicles
  • 1967 and older U.S. manufactured federally certified vehicles

Vehicle Fitment

This product will fit the following Bronco years:

This product will fit the following C10 years:

This product will fit the following F-100 years:

  • 1948,
  • 1949,
  • 1950,
  • 1951,
  • 1952,
  • 1953,
  • 1954,
  • 1955,
  • 1956,
  • 1957,
  • 1958,
  • 1959,
  • 1960,
  • 1961,
  • 1962,
  • 1963,
  • 1964,
  • 1965,
  • 1966,
  • 1967,
  • 1968,
  • 1969,
  • 1970,
  • 1971,
  • 1972,
  • 1973,
  • 1974,
  • 1975,
  • 1976,
  • 1977,
  • 1978,
  • 1979,

This product will fit the following Mustang years:

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