FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems

Not Yet Reviewed

FiTech Ultimate Rebel LS 500 hp EFI fuel injection systems are available with or without a transmission control. These cutting-edge fuel injection solutions combine

FiTech Ultimate Rebel LS 500 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 92mm 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 hand-held cable
(1) FiTech USB to USB C cable
(2) FiTech oxygen sensors
(1) Premium magnetic handheld 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 500 HP EFI Fuel Injection Systems 73121

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Short Intake, Drive By Cable, 92mm, 36 lb, Chevy, LS1, LS2. LS6, Kit

Part Number: FIF-73121

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 70088

Fuel Injection System, Ultimate Rebel LS 500 HP EFI, Short Intake, without Transmission Controller, Chevy, LS1/LS2/LS6, Kit

Part Number: FIF-70088

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 71089

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92mm Throttle Body, Inline Fuel Pump, 36 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-71089

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 76388

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92mm Throttle Body, In-Tank Fuel Pump, 36Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-76388

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 76389

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92mm Throttle Body, In-Tank Fuel Pump, 36 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-76389

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73272

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Tall Intake, Cable Drive, 92mm, 36 lb, Chevy, LS3, Kit

Part Number: FIF-73272

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73141

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Tall Intake, Cable Driven, 92mm, 36 lb, Chevy, LS1,LS2, LS6, Kit

Part Number: FIF-73141

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73142

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Tall Intake, Drive By Wire, 92mm, 36 lb, Chevy, LS1,LS2, LS6, Kit

Part Number: FIF-73142

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73171

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Short Intake, Black, Cable Driven, 92mm, 36 lb, Chevy, LS3, Kit

Part Number: FIF-73171

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73172

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Short Intake, Black, Drive By Wire, 92mm, 36 lb, Chevy, LS3, Kit

Part Number: FIF-73172

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 78188

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92mm, Inline Fuel Pump, LS3 Coils, 36 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-78188

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 78189

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92mm, Inline Fuel Pump, LS3 Coils, 36 Lb., EV1, With Transmission Controller, Kit

Part Number: FIF-78189

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73211

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Short Intake, Cable Driven, 92mm, 36 lb, Chevy, LS3, Kit

Part Number: FIF-73211

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73212

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Short Intake, Cable Driven, 92mm, 36 lb, Chevy, LS3, Kit

Part Number: FIF-73212

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73231

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Tall Intake, Cable Driven, 92mm, 36 lb, Chevy, LS3 Kit

Part Number: FIF-73231

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73232

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Tall Intake, Cable Driven, 92mm, 36 lb, Chevy, LS3 Kit

Part Number: FIF-73232

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73192

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Short Intake, Drive By Cable, 92mm, 36 lb, Chevy, LS3, Kit

Part Number: FIF-73192

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 73191

Fuel Injection System, Ultimate Rebel LS, 500 HP EFI, Short Intake, Drive By Cable, 92mm, 36 lb, Chevy, LS3, Kit

Part Number: FIF-73191

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 71717

Fuel Injection System, Ultimate Rebel LS 500 HP EFI, Short Intake, Cable Driven 92mm, 36lb, Chevy, LS3, Kit

Part Number: FIF-71717

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

FiTech Ultimate Rebel LS 500 HP EFI Fuel Injection Systems 75288

Fuel Injection System, Ultimate Rebel, 500 HP, Cathedral Port, 92mm Throttle Body, Inline Fuel Pump, 36 Lb., EV1, Without Transmission Controller, Kit

Part Number: FIF-75288

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today