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FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 71091 System, Rebel, HP, Cathedral Port, 102mm Throttle Body, Inline Pump, 55 Lb., EV1, With Transmission Controller, Kit

SKU: FIF71091

Fuel Injection Systems

FiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems 71091 System, Rebel, HP, Cathedral Port, 102mm Throttle Body, Inline Pump, 55 Lb., EV1, With Transmission Controller, Kit

SKU: FIF71091

Fuel Injection Systems
A$5,696.74
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

IMPORTANT NOTICE: Note for Australian & European MarketsThis item was designed and engineered in the USA for US domestic vehicles. OBD tools, ECUs, dongles, programmers, and tuners may have limited compatibility with vehicles outside the USA due to regional differences in emission standards and system configurations. Some features and functionality may vary depending on the vehicle and location. Please review the product details and images to ensure it meets your needs. For clarification or assistance, feel free to contact a StreetFX agent. Note: Returns are not accepted for special order products.(keyword: controller)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Fitech Fuel Injection StreetFX SKU fif71091 SFX Item ID 5178244 Accounting SKU fif-71091 Manufacturer SKU 71091 Manufacturer UPC 810128303002 Alternative References 71091, FIF-71091


Data: v2 - Desc: v4.2 - Upd: 2026-10-14 03:31:15

Part Type

Fuel Injection Systems

Data: v4.2 - Upd: 2026-10-14 03:31:15

Specifications

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

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

Product Attributes
BrandFiTech Fuel Injection
Manufacturer's Part Number71091
Part TypeFuel Injection Systems
Product LineFiTech Ultimate Rebel LS 750 HP EFI Fuel Injection Systems
UPC810128303002
Fuel Injection StyleMulti-port
Fuel Injection System TypeMulti-port Throttle Body
Maximum Horsepower with Gas750
Timing Control CompatibleYes
ECM IncludedYes
Self TuningYes
User TunableYes
Fuel System IncludedInline pump kit
Fuel Pump Flow Rating (lph)255
Ignition System IncludedNone
Power Distribution IncludedNone
User Interface Included4.5 in. display
EGRNo
Transmission Controller IncludedYes
Metering StyleSpeed density (Map-N) or speed throttle (Alpha-N)
Intake MaterialAluminum
Intake ColorBlack
Engine Block Deck HeightStandard deck
Multi-Port Fuel Rails IncludedYes
Throttle Body IncludedYes
Throttle Body Mounting FlangeGM LS2 4-bolt
Venturi Quantity1
Venturi Diameter (mm)102.00mm
Airflow Rate (cfm)1,500 cfm
Throttle Body MaterialBillet aluminum
Throttle Body ColorBlack
Injectors IncludedYes
Injector Size (lbs/hr)55 lbs./hr.
Calibration Module IncludedYes
Wiring Harness IncludedYes
Oxygen Sensor IncludedYes
Fuel Pressure Regulator IncludedYes
MAP Sensor IncludedYes
IAT Sensor IncludedYes
TPS Sensor IncludedYes
IAC Motor IncludedYes
QuantitySold as a kit.
NotesKit includes a short profile intake manifold, EV1 style injectors, and an in-line fuel system.

Reference Information

Brand Name/s Fitech Fuel Injection
StreetFX SKU fif71091
SFX Item ID 5178244
Supplier Item Code 5178244
Manufacturer SKU 71091
Manufacturer UPC 810128303002
Alternative References 102mm, EV1

Compatibility

No specific fitment data available for this part. For clarification, please contact us.

Detailed Compatibility


Application Data
UniversalNo
MakeCHEVROLET
Beginning Year1997
Ending Year2004
Engine TypeV8
Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size5.7L/350
Fuel TypeALCOHOL
Cylinder Head TypeCathedral Port LS1/LS2/LS6
Application NotesTransmission controller is designed for use with a 1996-2009 GM 4L60E, 4L65E, 4L70E, 4L75E, and 4L80E transmission.
UniversalNo
MakeCHEVROLET
Beginning Year1997
Ending Year2004
Engine TypeV8
Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size5.7L/350
Fuel TypeFLEX
Cylinder Head TypeCathedral Port LS1/LS2/LS6
Application NotesTransmission controller is designed for use with a 1996-2009 GM 4L60E, 4L65E, 4L70E, 4L75E, and 4L80E transmission.
UniversalNo
MakeCHEVROLET
Beginning Year1997
Ending Year2004
Engine TypeV8
Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size5.7L/350
Fuel TypeGAS
Cylinder Head TypeCathedral Port LS1/LS2/LS6
Application NotesTransmission controller is designed for use with a 1996-2009 GM 4L60E, 4L65E, 4L70E, 4L75E, and 4L80E transmission.

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.

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