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FiTech 71004 Ultimate LS EFI 750HP Fuel Injection Systems
FiTech 71004 Ultimate LS EFI 750HP Fuel Injection Systems

FiTech 71004 Ultimate LS EFI 750HP Fuel Injection Systems

Chevy LS V8, 4L60E, 4L65E, 4L70E, 4L80E

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FiTech 71004 Ultimate LS EFI 750HP Fuel Injection Systems
FiTech 71004 Ultimate LS EFI 750HP Fuel Injection Systems
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We estimate this item will ship on or before December 3rd.
Part # 52171004
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 8 business days for FiTech to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


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The LS EFI 750HP fuel injection systems by Fitech are hands down the best on the market! Many of the parts for these systems have been fabricated, including the low-profile 102mm billet throttle body, high-volume billet fuel rails, and an intake manifold with 1,500 to 6,500 rpm powerband and 3mm construction.

System includes sequential spark and fuel control mates 36 lbs./hr. injectors, a plug-and-play wiring harness, and a color touchscreen self-learning ECU. This allows for programing two fan control outputs, most tach and speedometer output drivers, and target AFR and timing on the fly. A suction cup mounting bracket puts the controllers at your fingertips and allows for impressive visual aids.

Optional transmission control feature is suitable for 4L60, 4L65, 4L70, or 4L80 GM transmissions. The FiTech LS EFI 500HP fuel injection systems with trans controller provides great power and performance without breaking the bank.

  • Programmable touch-screen hand-held controller with data log features
  • 3-bar MAP sensor automatically detects up to 30 psi boost
  • AN fittings and fuel crossover
  • 24X and 58X crank and cam-compatible and works with custom cams
  • Black anodized aluminum parts for style and corrosion resistance
  • High-flow, cable-operated throttle body
  • Dual Bosch wideband with dual trim controlled
  • Knock sensor control
  • Stainless oxygen sensor bung
  • Compatible with car and truck coils
  • Designed for applications making at least 6 inches of vacuum at idle


Includes tran control

Some parts are not legal for use in California or other states with similar laws/regulations

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