FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems

Not Yet Reviewed

FiTech Ultimate Rebel LS 750 hp EFI fuel injection systems are available with or without a transmission control. These cutting-edge fuel injection solutions combine

FiTech Ultimate Rebel LS 750 hp EFI fuel injection systems are available with or without a transmission control. These cutting-edge fuel injection solutions combine high performance with a sleek and refined design. Building upon the success of the renowned FiTech Ultimate LS EFI system, the Rebel LS takes innovation a step further with its distinctive cleaner profile and enhanced features, making it the ultimate choice for modern engine conversions.

Designed for enthusiasts seeking both power and aesthetics, the Ultimate Rebel LS EFI system redefines the look and performance of your LS-powered vehicle. The standout feature of the Rebel LS system is its sleek and streamlined appearance, which seamlessly integrates with the engine bay, providing a cleaner and more polished aesthetic. The redesigned fuel rail bracket adds to the visual appeal, offering a fresh and modern touch that complements any engine setup.

Beneath its striking exterior, the Ultimate Rebel LS EFI system boasts the same advanced technology that FiTech is known for. Experience exceptional fuel delivery and engine control, optimizing your vehicle's performance and efficiency. These systems are tailored to LS engine conversions, ensuring a hassle-free installation process while delivering consistent and reliable results.

Key features include:

* Cleaner profile: The Ultimate Rebel LS EFI system is engineered with a refined design that seamlessly integrates into your engine bay, elevating the visual appeal of your vehicle
* Thicker gauge manifold provides quieter injection
* Redesigned fuel rail bracket: The innovative fuel rail bracket design not only enhances the appearance but also adds a touch of sophistication to your engine compartment
* Advanced fuel injection technology: Benefit from FiTech's cutting-edge fuel injection technology, ensuring precise fuel delivery and optimized engine performance
* Effortless installation: Designed specifically for LS engine conversions, the Rebel LS system offers a user-friendly installation process that minimizes downtime
* Optimized performance: Unlock the full potential of your LS-powered vehicle with improved throttle response, increased horsepower, and better fuel efficiency
* The most complete kit on the market; includes manifold, ECU, sensors, throttle body, harness, fuel rails, fuel pressure regulator, throttle cable brackets, and more
* Boost/Nitrous compatibility: Equipped with 3 Bar MAP sensor (27 psi)
* E85 compatible

Kit contents:

(1) Rebel LS1, LS2, LS6 low-profile intake manifold with MAP and IAT port
(1) Ultimate LS 102mm throttle body with sensors
(8) 36 LB injectors
(1) LS ECU
(1) LS1 fuel rail kit
(1) Primary LS harness
(2) EV1 injector sub harness
(1) Oxygen sensor extension sub harness
(1) 3 Bar MAP sensor
(1) IAT sensor
(1) LS1/LS2 knock sensor harness
(1) Go EFI clamp-on oxygen sensor bung kit
(1) Handheld monitor for ultimate LS
(1) FiTech handheld cable
(1) FiTech USB to USB C cable
(2) FiTech oxygen sensors
(1) Premium magnetic hand-held mount
(1) Rebel intake throttle cable bracket with round hole
(1) Rebel intake throttle cable bracket with stock GM cable notch
(1) Go Fuel tight fit regulator with pressure gauge

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FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 73234

Fuel Injection System, Ultimate Rebel LS, 750 HP EFI, Tall Intake, Cable Driven, 102mm, 55 lb, Chevy, LS3 Kit

Part Number: FIF-73234

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 70090

Fuel Injection System, Ultimate Rebel LS 750 HP EFI, Short Intake, without Transmission Controller, Chevy, LS1/LS2/LS6, Kit

Part Number: FIF-70090

Not Yet Reviewed

Estimated Ship Date: Today

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FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 73213

Fuel Injection System, Ultimate Rebel LS, 750 HP EFI, Short Intake, Cable Driven, 102mm, 55 lb, Chevy, LS3, Kit

Part Number: FIF-73213

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 73233

Fuel Injection System, Ultimate Rebel LS, 750 HP EFI, Tall Intake, Cable Driven, 102mm, 55 lb, Chevy, LS3 Kit

Part Number: FIF-73233

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79790

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-79790

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 73273DBW

Fuel Injection System, Ultimate Rebel LS, 750 HP EFI, Tall Intake, Drive By Wire, 102mm, 55 lb, Chevy, LS3, Kit

Part Number: FIF-73273DBW

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79191

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, Inline Fuel Pump, LS3 Coils, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-79191

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79891

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-79891

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 75291

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, Inline Fuel Pump, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-75291

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76490

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm Throttle Body, In-Tank Fuel Pump, 55Lb., EV1, Without Tansmission Controller, Kit

Part Number: FIF-76490

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76390

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, Throttle Body, In-Tank Pump, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-76390

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 75290

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, Inline Fuel Pump, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-75290

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78791

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102 mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-78791

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78491

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-78491

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76290

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, In-Tank Fuel Pump, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-76290

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76190

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, In-Tank Fuel Pump, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-76190

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 76691

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm Throttle Body, In-Tank Fuel Pump, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-76691

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79691

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-79691

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79090

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, No Fuel Pump, LS3 Coils, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-79090

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78690

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-78690

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 79690

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-79690

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today

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Estimated Ship Date: Jun 19, 2026 if ordered today

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 78890

Fuel Injection System, Ultimate Rebel, 750 HP, Cathedral Port, 102 mm, In-Tank Fuel Pump, LS3 Coils, 55 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-78890

Not Yet Reviewed

Estimated Ship Date: Jun 19, 2026 if ordered today