Best Aftermarket Efi System in 2023

Sometimes it might be quite difficult to find the best aftermarket efi system. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this aftermarket efi system buying guide.

Quick Picks:

The 15 Best Aftermarket Efi System Reviews:

Bestseller No. 1
NEW HOLLEY SNIPER EFI 2300 SELF-TUNING MASTER KIT,2 BBL FUEL INJECTION CONVERSION,POLISHED,580 CFM,350 HP,COMPATIBLE WITH 2300 FLANGE STYLE MANIFOLDS
  • Injector Size: 100 lb/hr @ 58.5 PSI | Inlet/Outlet Size: 9/16-18 Female O-Ring (AN 6) | MAP Sensor: 2 Bar | Max Horsepower Rating: 350 Naturally Aspirated | Product Type: Sniper 2 BBL EFI Kits | Transmission: 700R4/200R4, F. C4/C6, TH350
  • NOTE: United States Coast Guard Approved Certified to ISO 8846, SAE J1171 Requirements | F. transmissions may require Part Number 20-60 F. Transmission Kickdown Spring & Bracket kit | A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
SaleBestseller No. 2
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...
Bestseller No. 3
NEW HOLLEY SNIPER EFI SELF-TUNING MASTER KIT,800 CFM,BLACK,4BBL,FUEL INJECTION CONVERSION
  • 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
Bestseller No. 4
Easy Street EFI System Up to 600HP
  • Easy Street EFI System Up to 600HP
Bestseller No. 5
High-Performance Ignition Systems: Design, Build & Install (Performance How-to)
  • S-A Books High-Performance Ignition Systems: Design, Build and Install P/N 79
  • Kimbrough, Bobby (Author)
  • English (Publication Language)
  • 144 Pages - 01/20/2014 (Publication Date) - CarTech (Publisher)
SaleBestseller No. 6
SINGARO Car Battery Terminal Connector, 4 Way Positive and Negative Pole Quick Release Terminal Clip, Applicable to SAE/JIS A Type Terminal Post, Compatible with Cars, Trucks and More(Gold-A)
  • High-Quality: Made of tinned copper, it has 4 ports for multiple cable connections, with good electrical conductivity and corrosion resistance, mainly used for SAE / JIS TYPE A rear car battery.
  • Widely Applicable: Our battery terminal connectors suitable for cars, vans, motorhomes, caravan, truck batteries, etc. Please be sure to connect correct terminal to correct polarity.
  • Size: For wires diameters 5.2 - 7.4mm (AWG gauges 1 - 4). Minimum wire size: 16mm (5/8"). Max wire clamp: 9.5mm/0.37in, mini wire clamp: 6.5mm/0.25in. Positive inner diameter: 17.5~19.1mm, negative inner diameter: 15.9~17.5mm.
  • You Well Get: Package contains 2 battery terminal connectors (positive and negative), 4 insulation sleeves, 4 Terminal block , 1 Battery Terminal Cleaners, 2 battery anti-corrosion washers and a hex wrench.
  • Enjoy Warranty: You will get quality products, if you have any questions, please contact us, we are always waiting for you here.
Bestseller No. 7
Holley 550-511K EFI Self-Tuning Master Kit
  • Breathe new life into your Small Block Chevy or Big Block Chevy engine with this easy-to-install fuel injection/distributor ignition kit
  • Throttle body mounted ECU - no extra computers to mount or relocate
  • Self tuning ECU means you don't have to be a computer/tuning expert to enjoy EFI
  • Capable of supporting up to 650 HP
  • Precision machined shutter wheel designed for improved accuracy at extreme engine RPM
Bestseller No. 8
FAST 30226-06KIT EZ-EFI Fuel Self-Tuning Throttle Body Injection Kit, Throttle Body Systems (30227-06KIT)
  • Direct bolt-on carburetor replacement with throttle body dimensions similar to Holley And other popular carburettors, including a Holley-style throttle linkage And 4150 square flange intake bolt pattern
  • Includes injectors And fuel rails supporting up to 650 HP
  • No software necessary; intuitive self-learning system will work with only a few simple questions answered in the handheld's Setup Wizard And one throttle screw adjustment
  • Can control electric fuel pump, electric cooling fan And A/C line to raise idle RPM when A/C is turned on.Throttle Body Material: Cast aluminum
  • Includes in-line fuel pump.
Bestseller No. 10
EVIL ENERGY 6AN Adjustable Fuel Pressure Regulator EFI Bypass Return 30-70psi Black&Red
  • Bypass pressure regulators return style provides constant effective fuel pressure to the outlet port - pressure overage is bled off through the return port as needed.
  • Universal fuel regulator fit for most vehicle's EFI system.Adjustable fuel pressure: 30psi -70psi.Adjust the set screw on top to get the desired pressure.
  • The optimum adjustable 6an fuel pressure regulator location is after the fuel rail(s) when possible.
  • Material: aluminum alloy. Package include: as shown in the main image. (Including instructions).
  • When installing fuel regulator NPT pressure gauge port,please use thread sealant tape for sealing.Professional installation is highly recommended.
Bestseller No. 11
SIR IUS LED N3 578 211-2 212-2 41MM 194 168 2825 Combo LED bulbs white Super Bright 300 Lumens 3030 Chipset for The U.S.A Car Truck Interiors Dome Map Door Courtesy License Plate Lights pack of 10
  • Value Pack of 10 Piece combo deal of 4x pieces 578 211-2 212-2 41mm festoon led bulbs and 6x pieces 194/168/2825 led bulbs for Most of the USA brand Car and Truck Interior and license Plate light application.
  • non polarity specific which mean you can plug the bulb in either way and it will work just fine, they are non-canbus LED, if your car require Canbus, they will give you pop up error message
  • Each bulb built with three 3030 high power SMD Chips. Give your car pure white super bright light output.
  • Direct replace the original halogen bulb. Plug and play for easy installation. Please make sure they are right bulb size for your specific car
  • We offer 1 year warranty if the bulb confirmed to be manufacture defect or shipping damaged
SaleBestseller No. 12
Nilight 3PCS 60 Inch Bed Light Strip 270 LED with On/Off Switch Blade Fuse Splitter Extension Cable for Cargo Pickup Truck SUV RV Boat,2 Years Warranty
  • Impressive Brightness: The 3PCS light strip includes 270 PCS 5050-SMD LED chips, outputs a 3900LLM 6000K super bright white light to light up your entire truck bed.
  • Quick Installation: Peel and stick, the self-adhesive tape with tough-as nail adhesive enhancer for strong sticking. You can also add on the included mounting hardware for extra security.
  • Ease and Safe Electrical Hookup: Come with splitter cable, 5A inline blade fuse, on/off switch, extension cable, mounting hardware for all your wiring needs. Always ensure the circuit safety for your on-road driving.
  • Flexible & Durable Design: The light strip is in IP67 sealed housing, well protect strip against raindrop, dirt and sand, super durable and flexible with up to 30, 000 hrs lifespan
  • Wide Application: Can be widely used for RV Awning Light, truck bed light, step bar led light, side door light etc.
Bestseller No. 13
Nilight 4 in 1 ON/OFF Charger Socket Panel Dual USB Socket Power Outlet & LED Voltmeter &Cigarette Lighter Socket& LED Lighted ON Off Rocker Toggle Switch for Truck Car Marine Boats RV,2 Yeas Warranty
  • 4 in 1 DIY Toggle Switch Panel: Dual USB Socket + Voltmeter + 12V Outlet + ON/OFF Toggle Switch. It’s convenient for installing and operating. Also detachable to replace other charger sockets or anything else that fits.
  • Real Time LED Voltmeter: The LED voltmeter shows accurate voltage status, reminds you whether the voltage is at a normal level, more secure for driving. Also allows quick and easy usage in the darkness. Your charging needs.
  • SAFETY: The wires was built-in 10A Fuse for over-load protection. It can charge safely, without risk of overheating or damaging devices.
  • Multifunctional product with LED indicator light, perfect for travel use. Fits for 12-24V Cars, Trucks, Marine Boats, ATV, RV, etc. The USB socket with dual output 5V/2. 1A, 5V/2. 1A charging port
  • Package includes: 4 in 1 Toggle Switch Panel, 3 packs of connecting wires, 9 insulated terminals, 4 Mounting Screws, 1 Wiring Diagram
Bestseller No. 14
FAST 304147 EZ-EFI Cable Mount Kit
  • Better quality strength and appearance than generic kits found at chain auto parts stores
  • Designed to work with and allow adjustability for automatic transmission TV cables
  • Proper tension double spring ensures proper throttle closing and maximizes EZ-EFI performance
  • Adjustable geometry is specifically engineered to ensure proper wide open throttle actuation
  • Includes all necessary hardware to install and adjust
SaleBestseller No. 15
Nilight - ZH003 20Inch 126W Spot Flood Combo Led Light Bar 4PCS 4Inch 18W Spot LED Pods Fog Lights for Jeep Wrangler Boat Truck Tractor Trailer Off-Road, 2 Years Warranty
  • Super bright beam: High intensity 3W LED chips and clear PC lens, super bright white light dispels darkness, ensuring safety of your trip
  • Combo beam, clear view: 126w-appropriate combination of spot beam and flood beam for widespread and long distance illumination
  • Adjustable mounting bracket: The light bar can be adjusted to about 45 degrees, which makes changing direction of light beam easier
  • Better heat dissipation: Special designed die-cast aluminum alloy cooling fins effectively extend the lifespan to over 30, 000 hours
  • Package includes: 1Pc 126W Combo LED light bar, 4Pcs 18W spot LED light bars and mounting brackets

Last update on 2023-01-12 / Affiliate links / Images from Amazon Product Advertising API

How to find the best aftermarket efi system?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best aftermarket efi system for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good aftermarket efi system recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the aftermarket efi system need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for aftermarket efi system to find what you’re looking for:

Brand

In some cases, the brand of aftermarket efi system is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given aftermarket efi system are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about aftermarket efi system are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare aftermarket efi system quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best aftermarket efi system can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.