You will find our hand-picked selection of Best Efi System below. You have a wide variety of choices of brands such as FI-TECH,Southwest Speed,FITech Fuel Injection,HP Books,Holley available to you as a result of the fact that each one of them has a unique pricing, look, and feel. Continue reading for an in-depth analysis in our Best Efi System buying guide!
Our experts tested a variety of Best Efi System on the market. Right at the top of the list is FI-TECH Best Efi System. Check out some more of our favorites below, and read some valuable insight from our experienced editors.
Editor's Choice

NEW HOLLEY SNIPER EFI SELF-TUNING MASTER KIT,800 CFM,BLACK,4BBL,FUEL INJECTION CONVERSION
Premium Pick

FITech Fuel Injection 31005 Easy Street EFI Throttle Body System Kit 600 HP Clas
Top 10 Best Efi System
We researched and compared the top products in the Best Efi System category to provide you with these recommendations.
1. Easy Street EFI System Up to 600HP

- Item Package Dimension: 13.9L x 11.7W x 7.4H inches
- Item Package Weight - 11.5 Pounds
- Item Package Quantity - 1
- Product Type - FUEL PUMP
2. NEW HOLLEY SNIPER EFI SELF-TUNING MASTER KIT,800 CFM,BLACK,4BBL,FUEL INJECTION CONVERSION

- Features a throttle body mounted ECU
- It is capable of supporting up to 650 HP
- Will fit single and dual plane intake manifolds
- Has an integrated ignition timing control
- Comes with a color touchscreen for easy setup and gauge displays
3. FITech Fuel Injection 31003 GoStreet EFI - Throttle Body Master Kit 400 HP Natur

- 400...
- Natural Aluminum...
- Includes Go EFI In-line Fuel Pump The Go Street EFI combined with the Inline Fuel Pump Fuel Delivery Kit 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. The Inline Fuel Pump Fuel Delivery Kit includes an EFI grade 255 L/PH inline external fuel pump that is suitable for engines making up to 600HP. This kit also includes 40-feet of EFI...
- Self-learning...
- Four flow-matched 62-lb...
4. Performance Fuel Injection Systems HP1557: How to Design, Build, Modify, and Tune EFI and ECU

5. Holley 550-511K EFI Self-Tuning Master Kit

6. Wet vs. Dry Nitrous
7. Edelbrock 17400 EFI Fuel Pressure Regulator Rail Mounted 67 GPH/255 LPH 43 Factory Preset PSI -6AN

- For Pro-Flo 3 Systems
- Fits -6 AN Fuel Rail
- 43 psi Maximum Pressure
- Non-Return Type
- Made In The USA
8. Holley EFI 12.3" PRO Touchscreen Digital Dash,1.25" Depth,5.81" Height,13.44" Width,Compatible with

- Brand New Holley EFI 12.3" Pro Touch Screen Digital Dash, Compatible with Holley HP, Sniper EFI & Terminator X systems (Holley Part #553-111)
- Holley EFI Pro Dash measures 13.44" wide, 5.81" tall & 1.25" deep. The Pro Dash is completely customizable for use in a variety of motorsports applications. It features a 12.3" 1280x480 resolution low glare, high brightness & contrast, full color capacitive touch screen for easy viewing even in full sun, plug & play connection to all Holley EFI systems & a weather resistant aluminum housing featuring flexible mounting options. Holley EFI 12.3" Pro Dash includes everything needed for install!
- The Holley EFI 12.3" Pro Dash also features Input/Outputs for expanded functionality of your Holley EFI install. The 34pin connector has 13 multi-configurable inputs for most Holley EFI sensors like pressure & temp. These inputs are configurable, allowing you to utilize different sensor scaling calibrations, 2 dedicated speed inputs for RPM, Driveshaft speed, or any other Hall effect speed input.
- Pro Dash contains 4 ground switched outputs that can be utilized with the switch panel feature to quickly turn on any of your auxiliary accessories, such as a master nitrous switch, or an electric water pump.
- Specs: Brand: Holley EFI | Depth: 1.25" | Emission Code: 5 | Height: 5.81" | Product Type: Digital Dashes | Screen Size: 12.3" Viewing Area | Screen Type: Capactitve touch screen | Width: 13.44"
9. HOLLEY SNIPER EFI SELF-TUNING MASTER KIT,SHINY,800 CFM,4BBL,FUEL INJECTION CONVERSION

- Brand New Holley Sniper EFI Self-Tuning Master Kit, Shiny Finish Holley Sniper 4 Barrel Fuel Injection Conversion - Self-Tuning Master Kit plus Handheld EFI Monitor (Part #550-510K)
- Holley just brought EFI within range, introducing Sniper EFI master kits! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. The Sniper EFI master kit contains the most complete EFI fuel system on the market.
- Everything is included to completely plumb your fuel system including; 20 feet of 3/8" EFI Hose, in-line fuel pump, post and pre fuel filters, return bulkhead, and all of the necessary fittings and hardware. Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today!
- Specs: CFM: 800 | Emission Code: 3 | Finish: Shiny | Flange Style: Dual Bolt Pattern | Fuel Pressure: 58.5 PSI | Height: 3.28" Injector Size: 100 lb./hr @58.5 PSI
- Inlet/Outlet Size: 9/16-18 Female O-Ring (AN 6) | MAP Sensor: 2Bar | Max Horsepower Rating: 650 Naturally Aspirated | Product Type: Sniper 4BBL TBI Kits | Transmission: 700R4/200R4-TH350
10. FITech Fuel Injection 31005 Easy Street EFI Throttle Body System Kit 600 HP Clas

- 600...
- Classic Gold...
- Includes In-line Fuel Pump The Easy Street 600HP system using FiTechs proprietary self-tuning technology combined with the Inline Fuel Pump Fuel Delivery Kit, you can get your car on the road or track faster than ever, using just your gas pedal and the included handheld controller to make it all happen. Easy Street EFI fits any 4 barrel intake manifold and is the most self-contained, cost-effective unit on the market. Pre-programmed with bolt-n-go technology for out of the box performance...
Peter
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