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FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems 31003 System, 400HP Self-Tuning, Throttle Body, Injectors, ECM, Kit

SKU: FIF31003

Fuel Injection Systems

FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems 31003 System, 400HP Self-Tuning, Throttle Body, Injectors, ECM, Kit

SKU: FIF31003

Fuel Injection Systems
A$2,713.71
LAST ONE! Est Ship 4-7 days. In stock at 1 location (only 1 available)

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Description

Fuel Injection - Go Street EFI - Master Kit - Throttle Body - Square Bore - 80 lb/hr Injectors - Aluminum - Silver Anodized - Universal - Kit


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 01:07:49

Data: v4.2 - Upd: 2026-11-09 03:33:43

Features

Vehicle Compatibility and Return Conditions.

This 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.

Some electronic tuning devices and programmers require activation, registration, or pairing with a specific vehicle’s VIN (Vehicle Identification Number). Once activated or paired, these devices may become permanently associated with that vehicle, restricting or preventing their use on another vehicle, resticting our ability to offer returns or exchanges.

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 or tuning products unless the unit is deemed faulty.

(keyword: efi)

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.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Fitech Fuel Injection
StreetFX SKU fif31003
SFX Item ID 5177989
Accounting SKU fif-31003
Manufacturer SKU 31003
Manufacturer UPC 854549007026
Alternative References 31003, FIF-31003, FIT31003

Fuel Injection System, Go Street EFI 400HP Self-Tuning, Throttle Body, Injectors, ECM, Kit

Fuel Injection System, Go Street EFI 400HP Self-Tuning, Throttle Body, Injectors, ECM, Kit

These FiTech Go Street EFI fuel injection systems are tailored for 400 hp engine for both pump gas and E85 applications, and serve as a true carburetor replacement. These self-tuning, 4-injector throttle bodies simply swap out your current 4-barrel carburetor for EFI performance. You don't have to mess with the ignition at all.

Features include:
• Self-tuning fuel injection
• Latest Bosch 4.2 wideband O2 sensor
• ECU is mounted on throttle body
• Universal base fits any 4-barrel manifold
• Throttle linkage suits most transmissions
• 3 fuel inlet connections
• Voltage control fuel pump control
• Wet flow technology
• Swirl spray annular discharge design
• Built-in fuel pressure regulator
• Designed for applications making at least 6 inches of vacuum at idle

Product Attributes
BrandFiTech Fuel Injection
Manufacturer's Part Number31003
Part TypeFuel Injection Systems
Product LineFiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems
UPC854549007026
Fuel Injection StyleThrottle body
Fuel Injection System TypeSingle 4-Barrel Throttle Body (4150 Flange)
Maximum Horsepower with Gas400
Timing Control CompatibleNo
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 IncludedNo
Metering StyleSpeed density (Map-N) or speed throttle (Alpha-N)
Multi-Port Fuel Rails IncludedNo
Throttle Body IncludedYes
Throttle Body Mounting Flange4-barrel square bore
Venturi Quantity4
Venturi Diameter (mm)44.45mm
Airflow Rate (cfm)850 cfm
Throttle Body MaterialCast aluminum
Throttle Body ColorNatural
Injectors IncludedYes
Injector Size (lbs/hr)56 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 an inline fuel pump kit.

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