Order by phone 1-888-485-5072

Holley EFI 550-850 Sniper EFI Self-Tuning Kit

7135918 - 550-850

2300 Flange Carburetor Replacement - Throttle Body Mounted ECU - Up To 350hp - 4 Wire Connection - Black Ceramic Finish - Handheld Tuner

550-850 Sniper EFI Self-Tuning Kit Holley EFI

View the Full List of Automotive Applications »

Pricing: $935.95


Holley EFI - Sniper EFI Self-Tuning Kit - Part#: 550-850 Features:

  • Bolt On 2300 Flange Carb Replacement
  • Supports Up To 350 Hp
  • Throttle Body Mounted ECU
  • 4 Wire Vehicle Connection Battery/Switched Ignition/RPM
  • Internal Fuel Pressure Regulator
  • High Resolution Full Color Touchscreen Display
  • Simple Calibration Wizard No Laptop Required
  • Includes Clamp On O2 Sensor Kit

View the Full List of Automotive Applications »

Below is an abbreviated list of applications for the Sniper EFI Self-Tuning Kit.


Holley is quickly becoming The New Standard In EFI! Holley's HP ECU is standard equipment on the 2013/2014 Chevrolet COPO Camaro and Holley's EFI throttle body powers every NASCAR Sprint Cup Series(TM) team. Top racers are making the switch to Holley EFI every day. Racers like Tom Bailey who set three new records and took the overall event win on the 2013 Hot Rod Magazine Drag Week and John Scali who used it to win the 2013 JEGS All Star race. But that's not all. The world's best street machine builders and tuners are making the switch to Holley EFI. Builders like Dave Lane who used Holley EFI to power the 2013 Goodguys Hot Rod of the Year and tuners like Steve Morris who use it to build some of the baddest forced induction beasts on the planet. It's the easiest, most refined, feature-rich system that money can buy. But, don't take our word for it, see what the best are saying about Holley EFI!


  • 7135918 - 550-850
  • 7135918
  • 550-850
  • 090127021279
  • Holley EFI
  • New

Shipping Information

  • Item Requires Shipping
  • 9.0 lbs.
  • W11.0000” x H8.0000” x L12.2500”

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.

Share Holley EFI 550-850 Sniper EFI Self-Tuning Kit on Facebook

Items: 0
Total: $0.00

Can't find what you need? Questions?

Just ask us! ... Use our online email form to submit details on what you are looking for. We will do our best to locate this part for you!

Why Shop From Tognottis Auto/Truck?

Extensive Selection

Covering all of your truck accessory and performance parts needs.

Low Prices Everyday

See it for less? Let us know! Request a price match.

Fast Shipping

See our detailed shipping rates.Easy Returns. View our policies and procedures.

Superior Customer Service

Find the answers to commonly asked questions.

Secure Web Transactions

All transactions involving personal information are secured through SSL encryption.