Product Summary

Multi-port Injection Style, 950 CFM CFM, ECM Included

  • Low-profile 102mm billet throttle body maximizes airflow while maintaining accessory clearance and aggressive looks
  • Fabricated 3mm aluminum intake manifold (short cathedral or long runner options) optimized for 1,500-6,500 RPM torque and up to 750 HP
  • 55 lb/hr high-flow injectors with sequential control for precise fuel delivery, better atomization, and peak power potential
  • Color touchscreen self-learning ECU with on-the-fly tuning, dual fan control, tach/speedo outputs, and optional trans control for GM overdrives
  • Complete plug-and-play kit includes harness, sensors, fuel rails/regulator, gaskets, hardware, and handheld controller for fast LS swaps or upgrades
See more details

Key Specs

MFG. Part #76604
Injection StyleMulti-port
Injector Size55 lb/hr
Max Horsepower Rating750
ECM IncludedYes
See more specs

Need To Know

Quick and Easy Returns

Return Policy

FiTech 76604 Details

The FiTech Ultimate LS 750 HP EFI Systems unleash wicked, edge-of-control performance on LS engines with cathedral port heads (LS1/LS2/LS6) or rectangular port variants (LS3/L92). These complete self-tuning multi-port induction kits feature a low-profile 102mm billet aluminum throttle body, high-volume billet fuel rails, and a rugged 3mm TIG-welded fabricated aluminum intake manifold tuned for a broad 1,500-6,500 RPM powerbanddelivering alarming power, razor-sharp throttle response, smooth drivability, superior efficiency, and eye-catching style that wakes up any LS build. Sequential spark and fuel control pairs 55 lb/hr injectors with a plug-and-play harness, color touchscreen self-learning ECU (handheld with suction-cup mount for easy viewing), dual fan outputs, tach/speedo drivers, on-the-fly AFR/timing adjustments, and optional transmission control for seamless GM 4L60/65/70/80E shiftingproving modern EFI can be brutally powerful without the hassle.

  • Low-profile 102mm billet throttle body maximizes airflow while maintaining accessory clearance and aggressive looks
  • Fabricated 3mm aluminum intake manifold (short cathedral or long runner options) optimized for 1,500-6,500 RPM torque and up to 750 HP
  • 55 lb/hr high-flow injectors with sequential control for precise fuel delivery, better atomization, and peak power potential
  • Color touchscreen self-learning ECU with on-the-fly tuning, dual fan control, tach/speedo outputs, and optional trans control for GM overdrives
  • Complete plug-and-play kit includes harness, sensors, fuel rails/regulator, gaskets, hardware, and handheld controller for fast LS swaps or upgrades

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

FiTech 76604 Specifications

KEY SPECS
MFG. Part #76604
BrandFiTech
Injection StyleMulti-port
Injector Size55 lb/hr
Max Horsepower Rating750
ECM IncludedYes
GENERAL
Fuel Injection System TypeMulti-Point Injection (MPI)
CFM950 CFM
Injectors IncludedYes
Intake Manifold IncludedYes
Intake MaterialAluminum
Intake FinishNatural
Fuel Rails IncludedYes
Wiring Harness IncludedYes
MAP Sensor IncludedYes
Sold in QuantityKit

Ratings & Reviews

Questions & Answers

Customer Impersonation Script