FiTech Fuel Injection: Ultimate LS Induction System

FiTech’s Self-Tuning Induction Systems for LS engines come with everything needed to complete your induction system and get you on the road faster than any other system available. The Ultimate EFI is a complete kit: no more sourcing mismatched parts and cutting and splicing old harnesses and reflashed ECUs.

Suitable for that junkyard 5.3 to a stroker 427, a Self-Tuning Induction System from FiTech is a smart choice, whether you’re a do-it-yourself hot rodder or the professional EFI tuner. Available for 500 and 750 hp engines.


  • Available in 500 and 750 hp kits.
  • Low-profile inlet and aluminum intake.
  • Hi-flow, cable-operated throttle body with parabolic inlet machining, progressive linkage pulley with double return spring, and adjustable stop.
  • Self-learning ECU with touch screen controller and windshield mount.
  • Sequential fuel and spark control with individual cylinder trim.
  • Bosch wide band controlled.
  • Stainless oxygen sensor bung (clamp or weld-on).
  • Two programmable fan control outputs and tach output driver.
  • Compatible with car and truck coils.
  • Fuel-pump relay output and custom wire harness.
  • And much more!

FiTech Fuel Injection: Ultimate LS Induction System

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Though this is not a paid review, this content has been produced by The AAM Group in support of manufacturers with whom it has a business relationship.

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