Best Aftermarket EFI Systems

The automobile market is always evolving and one major segment is the use of EFI instead of the carburettor to enhance efficiency. Lots of people are spending their money on finding the best Electronic Fuel Injection (EFI) system. However, it is easy to claim that there are hardly any options from the car manufacturer itself.

A buyer would have to search for an aftermarket solution in these situations and it is typical to find the right one. One easier solution is to find the best aftermarket EFI system is going with a reputed brand. It is an easier method to pick a good EFI system. The difference between a good and bad aftermarket EFI system is in efficiency and power. A carburettor has the job of mixing fuel and air so that they burn perfectly in the engine.

When you do the same thing with an aftermarket EFI system, you calibrate EFI to provide the right power while maintaining efficiency. Most aftermarket EFI systems are getting smart and you can calibrate them easily with a little tuning. As finding the right product is difficult, we made a list of the best aftermarket EFI systems that you can buy for your vehicle. Let’s check out the list –

Best Aftermarket EFI Systems For The Money

NEW HOLLEY SNIPER EFI SELF-TUNING MASTER KIT
  • Brand New Holley Sniper EFI Self-Tuning Master Kit, Black Ceramic Finish Holley Sniper 4 Barrel Fuel Injection Conversion - Self-Tuning Master Kit plus Handheld EFI Monitor (Part #550-511K)
  • 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 | Finish: Black | 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

HOLLEY TERMINATOR X STEALTH 4150 EFI SYSTEM
  • Brand New Holley Terminator X Stealth 4150 EFI System, Black, 650 HP with Four 100lb/hr Injectors (Part #550-1002)
  • The Terminator X Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Terminator X ECU is capable of fuel map self-learning & ignition timing control, improving idle stability, drivability & wide-open throttle horsepower!
  • Stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 & Ford C4/C6 applications.
  • Features: Bolt on 4150 Flange Carburetor Replacement | Supports up to 650HP with Four 100lb/hr Injectors | Includes high pressure fuel crossover line | All of the wiring exits below the rear fuel injector cover, for a completely stealth install | Timed spark port for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor
  • Specs: Brand: Holley EFI | Color: Black | Injector Size: 100 lb/hr @ 58.5 PSI | Max Horsepower Rating: 650 Naturally Aspirated | Product Type: EFI System

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