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#52131003
FiTech 31003 Go Street EFI 400 HP System
- Comes with a handheld controller
- Features a die cast construction with a beautiful finish
- It has extreme self-learning for wide range super-fast dial in correction
$1,013.39
/kit
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$1,125.99
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Product Summary
Universal Fit, Throttle Body Injection Style, Natural
- Comes with a handheld controller
- Features a die cast construction with a beautiful finish
- It has extreme self-learning for wide range super-fast dial in correction
- The EZ-tach input, reads tach signal from Coil, HEI, MSD/CDI and many other brand ignitions
- Pre-programmed with Bolt-N-Go technology for out of the box performance with no tuning required
Rebates Available
See rebate detailsKey Specs
| MFG. Part # | 31003 |
| Injection Style | Throttle Body |
| Injector Size | 56 lbs./hr. |
| Max Horsepower Rating | 400 |
| ECM Included | Yes |
Need To Know
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855.313.9176Quick and Easy Returns
Return PolicyFiTech 31003 Details
FiTech 31003 Details
FiTech has realized that not everyone needs the biggest, baddest, highest-flowing fuel injection system you can get your hands on. Some of us just want a little more throttle response, be able to squeeze out better mileage and to make this change as easy as possible.
The FiTech Go Street EFI Series is the answer you have been looking for when it comes to performance, ease of setup, and reliability. As ready-to-run as they come but still providing the best in performance and economy, the all new FiTech Go Street EFI Series allows you to toss out that old leaky carburetor and bring new life to your favorite hotrod in the garage. This kit is designed for a simple, yet effective conversion to modern fuel injection technology at an incredibly affordable price.
This kit is also supplied with the FiTech Fuel Delivery kit for a simple and effective fuel system install. Included is a 255 L/ph EFI fuel pump, 20 feet of high pressure EFI grade hose, a 100 micron pre-filter and a 30 micron post filter, and associated push lock style fittings to simplify your fuel injection conversion. This system is designed for engines making up to 600 HP.
Kit Includes:
- Die Cast Throttle Body
- Handheld Controller
- Windshield Mount
- FiTech flow matched 62-lb injectors
- Built-in pressure regulator
- 2.5 BAR Internal MAP Sensor
- Throttle Position Sensor
- Idle Air Control
- Coolant Temp Sensor
- Wide band O2 Sensor
- O2 Bung Kit
Quick Start Guide - Handheld Controller (PDF)
Handheld Controller Feature Definitions (PDF)
Features
- Self Learning- Extreme self-learning for wide range super-fast dial in correction
- Suitable for crate engines and mild performance engines
- Pre-programmed with Bolt-N-Go technology for out of the box performance with no tuning required
- EZ-tach input, reads tach signal from: Coil, HEI, MSD/CDI and many other brand ignitions (no timing control)
- For non boosted engines- Normally aspirated applications only.
- Wide Band 4.2
- On board fuel pump driver
- Annular discharge design
- Hand Held tuning module for performance tuning
- 1 Fan Control and AC Input (Kicks up Idle)
- FiTech flow matched 62-lb injectors
- Attractive Cast Finish
- E85 compatible (30% reduction in HP capacity of fuel system and EFI)
Application
- Chevrolet, Pontiac, Ford, Chrysler, Dodge, Plymouth, Etc. engines making 150 HP up to 400 HP with a 4-barrel intake manifold.
- Replacement for any 4-barrel carburetors for engines with 150 HP up to 400 HP.
- Use the same size air cleaner you would normally use for your 4-barrel carburetor.
Charts
Instructions (PDF)
Rebates
FiTech 10% Off Select Parts Labor Day Sale 2026
FiTech Fuel Injection is pleased to announce our Labor Day Specials, running from September 1, 2026, through September 30, 2026. For a limited time, customers can save over $350 on Ultra Port EFI systems and EFI Master Kits, making it the perfect opportunity to upgrade to modern fuel injection with improved performance and drivability. 10% off applicable parts. Sale prices are applicable only to purchases made within the specified sale period, from September 1, 2026, to September 30, 2026. No rainchecks or exceptions will be provided. Sale price is valid through September 30. Regular MAP Pricing will be reinforced on October 1, 2026. This sale cannot be combined with any other offers, discounts, or promotions. Co-ops will be honored.
Guides & Documents
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
FiTech 31003 Specifications
FiTech 31003 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 31003 |
| Brand | FiTech |
| Injection Style | Throttle Body |
| Injector Size | 56 lbs./hr. |
| Max Horsepower Rating | 400 |
| ECM Included | Yes |
| GENERAL | |
| Carburetor Flange Type | 4-Barrel Square Bore |
| Fuel Injection System Type | Single 4-Barrel Throttle Body (4150 Flange) |
| CFM | 850 CFM |
| User Tunable | Yes |
| Self Tuning | Yes |
| Injectors Included | Yes |
| Intake Manifold Included | No |
| Metering Style | Speed density (Map-N) or speed throttle (Alpha-N) |
| EGR | No |
| Throttle Body Included | Yes |
| Throttle Body Material | Cast Aluminum |
| Throttle Body Finish | Natural |
| Venturi Quantity | 4 |
| Fuel Pump Included | Yes |
| Fuel Rails Included | No |
| Calibration Module Included | Yes |
| Wiring Harness Included | Yes |
| Fuel Pressure Regulator Included | Yes |
| Distributor Included | No |
| MAP Sensor Included | Yes |
| IAC Motor Included | Yes |
| IAT Sensor Included | Yes |
| TPS Sensor Included | Yes |
| Use with Power Adder | No |
| Venturi Diameter | 44.45mm |
| Flow Rating | 255 |
| Notes | Kit includes an inline fuel pump kit. |
| GTIN Code | 854549007026 |
| Sold in Quantity | Kit |
| Transmission Controller Included | No |
| Multi-Port Fuel Rails Included | No |
| Timing Control Compatible | No |
Ratings & Reviews
4
2 Reviews
Customer reviews confirm the easy installation of the product, enhancing its practicality. A noticeable feature is its usability for older models, specifically Dodge pickups. However, there were issues with the in-line pump initially, but the product's quality seems promising as the company promptly addressed the issue, promising to send a new, presumably better one. This demonstrates noteworthy customer satisfaction, setting the product apart from its competitors.
Ratings & Reviews
4
2 Reviews
Customer reviews confirm the easy installation of the product, enhancing its practicality. A noticeable feature is its usability for older models, specifically Dodge pickups. However, there were issues with the in-line pump initially, but the product's quality seems promising as the company promptly addressed the issue, promising to send a new, presumably better one. This demonstrates noteworthy customer satisfaction, setting the product apart from its competitors.
4
2 reviews
5
1
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Filter by Ratings
Absolutley
5.0
5 months ago
Customs
Red Springs NC
Verified
easy seamless installation
Would Recommend
I'm deciding if I would buy this again or not.
3.0
6 years ago
Big Daddy Cox
Lincoln
Verified
I'm using this on an older Dodge pickup, the in line pump seems to have issues right out of the box. However Fitech's customer service is sending me a new one. I am waiting to see how soon it comes and if it's any better.
Showing 2 of 2 reviews
Questions & Answers
Questions & Answers
2 Questions • 2 Answers
Is the throttle linkage 1988 700r4 TV cable compatible?
by Tom
• a year ago
1 answer
View Answer
When my street rod is parked for any length of time, I hit the kill switch, will this unit have to learn all over again every time?
by Chuck
• 8 years ago
1 answer
View Answer
2 of 2 questions shown


