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FiTech Ultimate LS 1,000 HP EFI Fuel Injection Systems
1 Customer Reviews
Small Block V8 GEN III/IV LS-based Chevrolet street and performance engines with a 1,500-6,500 rpm power-band up to 1,000 hp to the flywheel and contains a 3-bar MAP sensor for power adder applications that supports up to 30 psi of boost.
Additional product features:
* Low-profile, 102mm inlet, fabricated 3mm thick aluminum sheet metal TIG-welded intake manifold with 1,500-6,500 rpm power-band up to 1,000 hp to the flywheel and contains a 3-bar MAP sensor for power adder applications that supports up to 30 psi of boost
* Billet fuel rails with AN fittings and fuel crossover
* Self-learning ECU with touch screen controller for easy setup and configuration
* Sequential fuel and spark control with individual cylinder trim
* Dual Bosch wideband with dual trim control (self-learning)
* 3-bar MAP sensor automatically detects up to 30 psi boost
* Stainless oxygen sensor bung (clamp or weld-on)
* 24X and 58X crank and cam compatible
* Two programmable fan control outputs
* TPS–IAC Sensor
* Tach output driver for most tachometers (5 V)
* Output driver for most speedometers
* On-the-fly programmable target AFR and timing (if desired)
* 80 lbs./hr. flow-matched injectors
* Fuel pump relay output
* Custom wire harness (uses factory coil pack sub harness)
* Knock sensor control
Note: This kit is not carb approved for use on emission-controlled vehicles. It is not legal for use on pollution-controlled vehicles. This system is designed to control the EFI and ignition on LS-based engines being retrofit into older vehicles that do not require emission controls.
Showing In Stock Items. Show All 8 Items.
Fuel Injection System, Ultimate LS EFI, 1,000 HP, Short Cathedral Port, LS1/LS2/LS6, With Transmission Controller, Kit
Part Number: FIF-70031
Not Yet Reviewed
Estimated Ship Date: Jun 16, 2026 if ordered today
Estimated Ship Date: Jun 16, 2026 if ordered today
Fuel Injection System, Ultimate LS EFI, 1,000 HP, Short Intake, LS3 Rectangle Port, Without TransController, Kit
Part Number: FIF-70034
Not Yet Reviewed
Estimated Ship Date: Jun 16, 2026 if ordered today
Estimated Ship Date: Jun 16, 2026 if ordered today
Fuel Injection System, Ultimate LS EFI, 1,000 HP, Short Intake, LS3, With Transmission Controller, Kit
Part Number: FIF-70035
Not Yet Reviewed
Estimated Ship Date: Jun 16, 2026 if ordered today
Estimated Ship Date: Jun 16, 2026 if ordered today
Fuel Injection System, Ultimate LS EFI, 1,000 HP, Short Cathedral Port, LS1/LS2/LS6, Without Transmission Controller, Kit
Part Number: FIF-70030
Not Yet Reviewed
Estimated Ship Date: Jun 16, 2026 if ordered today
Estimated Ship Date: Jun 16, 2026 if ordered today
Fuel Injection System, Ultimate LS EFI, 1,000 HP, Short Port Intake, LS7, With Transmission Controller, Kit
Part Number: FIF-70037
Not Yet Reviewed
Estimated Ship Date: Jun 16, 2026 if ordered today
Estimated Ship Date: Jun 16, 2026 if ordered today
Fuel Injection System, Ultimate LS EFI, 1,000 HP, Short Port Intake, LS7, Without Transmission Controller, Kit
Part Number: FIF-70036
Not Yet Reviewed
Estimated Ship Date: Jun 16, 2026 if ordered today
Estimated Ship Date: Jun 16, 2026 if ordered today
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