FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems 31003

Name: FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems
Brand: FiTech Fuel Injection
SKU: FIF-31003
Price: 1125.99 USD
Availability: InStock
Rating: 4 (54 reviews)

4 out of 5 stars ( 54 )

Part Number: FIF-31003

$1,125.99

FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems

Fuel Injection System, Go Street EFI 400HP Self-Tuning, Throttle Body, Injectors, ECM, Kit
See More Specifications | Check the Fit

FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems 31003

FIF-31003

4 out of 5 stars ( 54 )

Part Number: FIF-31003

Estimated USA Ship Date: Monday 10/19/2026 Estimated International Ship Date: Today

$1,125.99

Overview

Applications

Recommended Parts

Replacement Parts

Kit/Combo Contents

Q&A

Reviews

Estimated USA Ship Date: Monday 10/19/2026 Estimated International Ship Date: Today

Kit/Combo Contents

FiTech Fuel Injection 30003 - FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems

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

Kit Item Quantity: 1

FiTech Fuel Injection 50001 - FiTech Fuel Delivery Kits

Fuel Delivery Kit, EFI In-Line Pump, Frame Mount, 67 gph/255 lph, 40 ft. Hose, Kit

Kit Item Quantity: 1

Overview

Brand:

FiTech Fuel Injection

Manufacturer's Part Number:

31003

Part Type:

Fuel Injection Systems

Product Line:

FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems

Summit Racing Part Number:

FIF-31003

UPC:

854549007026

Fuel Injection Style:

Throttle body

Fuel Injection System Type:

Single 4-Barrel Throttle Body (4150 Flange)

Maximum Horsepower with Gas:

400

Timing Control Compatible:

ECM Included:

Yes

Self Tuning:

Yes

User Tunable:

Yes

Fuel System Included:

Inline pump kit

Fuel Pump Flow Rating (lph):

255

Ignition System Included:

None

Power Distribution Included:

None

User Interface Included:

4.5 in. display

EGR:

Transmission Controller Included:

Metering Style:

Speed density (Map-N) or speed throttle (Alpha-N)

Multi-Port Fuel Rails Included:

Throttle Body Included:

Yes

Throttle Body Mounting Flange:

4-barrel square bore

Venturi Quantity:

Venturi Diameter (mm):

44.45mm

Airflow Rate (cfm):

850 cfm

Throttle Body Material:

Cast aluminum

Throttle Body Color:

Natural

Injectors Included:

Yes

Injector Size (lbs./hr.):

56 lbs./hr.

Calibration Module Included:

Yes

Wiring Harness Included:

Yes

Oxygen Sensor Included:

Yes

Fuel Pressure Regulator Included:

Yes

MAP Sensor Included:

Yes

IAT Sensor Included:

Yes

TPS Sensor Included:

Yes

IAC Motor Included:

Yes

Quantity:

Sold as a kit.

Notes:

Kit includes an inline fuel pump kit.

FiTech Go Street EFI 400 HP Self-Tuning Fuel Injection Systems

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