FiTech Ultimate LS EFI 750 HP Fuel Injection Systems

3.9 out of 5 stars 20 Customer Reviews

LS motors have a great base for power, but what they really need is something wicked to wake them up. FiTech LS EFI 750 HP fuel injection systems have alarming powe

LS motors have a great base for power, but what they really need is something wicked to wake them up. FiTech LS EFI 750 HP fuel injection systems have alarming power, exciting style, and will take you and your vehicle to the edge. FiTech fabricated many aluminum parts for these systems, including the low-profile 102mm billet throttle body, high-volume billet fuel rails, and an intake manifold with a 1,500 to 6,500 rpm powerband and 3mm construction.

Sequential spark and fuel control mate the 55 lbs./hr. injectors, plug-and-play wiring harness, and color touch screen self-learning ECU. This allows you to program 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 controller at your fingertips and allows for impressive visual aids.

The optional transmission control feature is suitable for 4L60, 4L65, 4L70, or 4L80 GM transmissions. Awaken the beast and feed its needs with an ultra-performing FiTech LS EFI 750 HP fuel injection system with transmission controller.

Additional features:

* 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

Showing In Stock Items. Show All 32 Items.

Results 1 - 20 of 20

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70013

Fuel Injection System, Ultimate LS EFI, 750 HP, LS3/L92, Without Transmission Controller, Kit

Part Number: FIF-70013

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 78014

Fuel Injection, Ultimate LS, Ultimate LS Kit LS3/L92 - 750HP w/ Trans Control, w/ coil pack set

Part Number: FIF-78014

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 79003

Fuel Injection, Ultimate LS, Ultimate LS Kit LS1/LS2/LS6 -750HP w/o Trans Control, w/ led coil pack set

Part Number: FIF-79003

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70082

Fuel Injection Systems, Ultimate LS 750 HP Dual Quad Matte Black EFI System With Cathedral Port Intake & Transmission Control

Part Number: FIF-70082

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70004

Fuel Injection System, Ultimate LS EFI, 750 HP, LS1/LS2/LS6, With Transmission Controller, Kit

Part Number: FIF-70004

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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Estimated Ship Date: Monday 2/23/2026 if shipped by air

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70008

Fuel Injection System, Ultimate LS EFI, 750 HP, LS1/LS2/LS6, Without Transmission Controller, Kit

Part Number: FIF-70008

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 71017

Fuel Injection System, Ultimate LS EFI, 750 HP, LS7, Without Transmission Controller, With Inline Fuel Pump, Kit

Part Number: FIF-71017

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 71018

Fuel Injection System, Ultimate LS EFI, 750 HP, LS7, With Transmission Controller, With Inline Fuel Pump, Kit

Part Number: FIF-71018

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 71004

Fuel Injection System, Ultimate LS EFI, 750 HP, LS1/LS2/LS6, With Transmission Controller, With Inline Fuel Pump, Kit

Part Number: FIF-71004

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 78004

Fuel Injection, Ultimate LS, Ultimate LS Kit LS1/LS2/LS6 -750HP w/ Trans Control, w/ coil pack set

Part Number: FIF-78004

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 78013

Fuel Injection, Ultimate LS, Ultimate LS Kit LS3/L92 - 750HP w/o Trans Control, w/ coil pack set

Part Number: FIF-78013

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 79004

Fuel Injection, Ultimate LS, Ultimate LS Kit LS1/LS2/LS6 -750HP w/ Trans Control, w/ led coil pack set

Part Number: FIF-79004

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 79008

Fuel Injection, Ultimate LS, Ultimate LS Tall for LS1/LS2/LS6 - 750hp w/o Trans Control for truck ACC, led coil pack set

Part Number: FIF-79008

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 79013

Fuel Injection, Ultimate LS, Ultimate LS Kit LS3/L92 - 750HP w/o Trans Control, w/ led coil pack set

Part Number: FIF-79013

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 79014

Fuel Injection, Ultimate LS, Ultimate LS Kit LS3/L92 - 750HP w/ Trans Control, w/ led coil pack set

Part Number: FIF-79014

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 78003

Fuel Injection, Ultimate LS, Ultimate LS Kit LS1/LS2/LS6 -750HP w/o Trans Control, w/ coil pack set

Part Number: FIF-78003

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70009

Fuel Injection System, Ultimate LS EFI, 750 HP, LS1/LS2/LS6, With Transmission Controller, Kit

Part Number: FIF-70009

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70018

Fuel Injection System, Ultimate LS EFI, 750 HP, LS7, With Transmission Controller, Kit

Part Number: FIF-70018

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70081

Fuel Injection Systems, Ultimate LS 750 HP Dual Quad Classic Gold EFI System With Cathedral Port Intake & Transmission Control

Part Number: FIF-70081

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

FiTech Ultimate LS EFI 750 HP Fuel Injection Systems 70017

Fuel Injection System, Ultimate LS EFI, 750 HP, LS7, Without Transmission Controller, Kit

Part Number: FIF-70017

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

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