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FITech Fuel Injection 30003

GoStreet EFI 400 HP Throttle Body System Basic Kit

FITech Fuel Injection 30003


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FITech Fuel Injection 30003 GoStreet EFI 400 HP Throttle Body System Basic Kit $795.00
GoStreet EFI Throttle Body System Basic Kit
  • 400 HP
  • Natural Aluminum Finish

  • FITech Fuel Injection 30003 Details

    400 HP Basic Kit


    • 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
    • -06AN Fuel Inlet Fitting
    • Gasket Kit

    Fitech's latest addition to the line of Go EFI Throttle Body EFI Systems is the GoStreet EFI 400 HP four injector Throttle Body System. Fitech has taken your needs into consideration and built an EFI designed for those who don't wont extreme horsepower ratings but still wants the advantage that EFI has to deliver. This cost effective system is a ready-to-run system that strays away from the programmable features and sticks to the basic functions necessary to get the best performance and economy out of your street and mild performance engine. Designed to fit any 4-bbl intake manifold. Available in a basic or master kit.


    • 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)
    • 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
    • Inlet fitting: 9/16”-24 to 6AN
    • Return fitting: 10mm x 1.25 to 6AN


    • Not legal for sale or use in emission restrictive states including California
    • For non-boosted engines - Normally aspirated applications only


    FiTech EFI Nitrous Instructions

    Handheld Controller - Quick Start Guide


    JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    30003 is rated 4.0 out of 5 by 12.
    Rated 5 out of 5 by from 1982 k blazer with a 454 v8 1 ton When I got started I hoped to drag my sweet 454 big block blazer out of the 6 to 7 range with this new system . shocked today I filled up and noted 11.6 miles per gallon not bad but the biggest change is the way in which it runs , it changed the truck . there is a night and day difference in how it starts runs and the highway top end out standing just a little scary . I am on my second fi tech system my ram charger is next and another blazer in the driveway .cant say enough good things as a foot note I live in Colorado so we can go from 5000 ft to 11000 in two hours . I have not wheeled with the system in place but it will be seen this summer in the hills .
    Date published: 2017-02-06
    Rated 5 out of 5 by from New life for early Bronco After driving about 100 miles I could not be happier with the installation. FITech kit 30003 provided almost everything needed. I also installed the 40005 in line frame mounted pump. I had to improvise a pump mount to put the pump level with the bottom of the tank. The handheld controller is very cool. Being able to see the air/fuel ratio is such a treat. I've had four different carburetors on this engine and could never find a sweet spot. I am impressed with the value and quality of the kits.
    Date published: 2016-12-01
    Rated 5 out of 5 by from Excellent product that's much easier than most. I had mine installed by a professional custom car shop that had done lots of fuel injection conversions. They were impressed with the instructions and the installation. It took them two days to install and tweak the system. The pressure canister works great.
    Date published: 2016-11-20
    Rated 5 out of 5 by from Everything Most likely the best aftermarket purchase ever. I am a mechanic by profession and Iput this system on a sand rail it was easy fast and reliable. I plan on buying 4 more love fitech.
    Date published: 2016-10-24
    Rated 5 out of 5 by from GREAT EFI especially for the price Installed on a 355 n a 78 Nova, I had all kinds of carb issues rich idle and a big bog. The Fitech has it running like a new car, excellent idle even with my cam and throttle response is instant. I'm beyond happy with this purchase.
    Date published: 2016-10-19
    Rated 4 out of 5 by from Make a big difference This was a time consuming install but the instructions were clear and concise. I was able to step through step by step and get it going the first time. It really improved the acceleration a ton. It's smooth and quick response. The only drawback is that the pertronix flamethrower III has an issue on initial start up with rpm fluctuations.
    Date published: 2017-11-02
    Rated 4 out of 5 by from Nice easy install Bought couple of weeks ago easy to follow instructions fired first crank i have not drove enough to see how well it tunes has a little hesitation off line hope it get better after a little learning over all very happy so far
    Date published: 2017-08-05
    Rated 4 out of 5 by from FiTech Easy I have had this for about a month. Easy install and bolt on. The display cable is a little short on the ECM wire. I have to hold the cable in as the heat shrink was not done where both cables are the same length. Overall not bad issue, just a nusiance
    Date published: 2016-11-16
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    I would be installing this in a 1977 corvette, 350 with Vortec heads and JEGS Performance Products Intake Manifold for Small Block Chevy with 1996-Up Vortec L31 Cast Iron Head. Will this fit?

    Asked by: Havasu Dan
    Yes, this will replace the carburetor. You will need to check the hood clearance with this combination. It may be too tall.
    Answered by: Rusty B
    Date published: 2018-03-30

    I have a 1978 pontiac trans am with a 400ci pontiac motor. Will this work with the factory shaker hood scoop?

    Asked by: Larrydh
    Yes, this should work, it is about the same size as the carburetor would be.
    Answered by: Rusty B
    Date published: 2018-03-28

    I have a 1980 Corvette with a 350, will this fit under the hood?

    Asked by: Jerry0401
    If you have the factory intake manifold an adapter would be required thus making it not compatible with a C3 stock hood
    Answered by: SteveM
    Date published: 2018-02-24

    Can I spray nitrous while using this model?  Going on a 302 stroked to 347. 

    Asked by: Brakejob
    No, you will need a "Power Adder" model such as FiTech #30004 for any nitrous.
    Answered by: Dean R
    Date published: 2018-02-19

    can I use this with computer controlled transmission.like on 94 gmc 1500

    Asked by: kenarmy2001
    Yes you could use this with an electronically controlled transmission. You will have to run a stand alone transmission controller.
    Answered by: Seth W
    Date published: 2018-02-15

    How is the kick down cable addressed, 350 turbo trans?

    Asked by: 54F100
    For a th350 you just use the large 1/2" hole on the bottom of the throttle linkage.
    Answered by: Seth W
    Date published: 2018-02-14

    I have a Ford F-150 with a 351 Windsor 5.8 L V4 HO Lariat 1985 will this help out on my Gas usage & power if needed ?

    Asked by: Indian Joe
    This will help with both on this truck.
    Answered by: Jon Jegs Tech
    Date published: 2018-01-31

    I have a 1978 Ford F250 with a 400 ci engine C6 trans, will the 30003 system work with a 4 barrel intake and electric fuel pump or do I need more accessories ?

    Asked by: Dave W
    This kit will work for your application. You will only have to change your fuel pump.
    Answered by: Jon Jegs Tech
    Date published: 2018-01-26
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    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations