Package/bundle discounts may be available, contact us at sales@efisupply.com for custom system quotes


**FREE Shipping on All Sniper EFI systems**


Note: Many different Holley Sniper EFI systems and options are available, please be sure to scroll down to see all listed items and Holley Sniper products.

Not sure which aftermarket EFI system is best for you? Click here to view our aftermarket EFI buyer's guide.

Looking for a summarized feature listing? Click here to view a list of features of our aftermarket efi systems

Holley Sniper EFI Features:
  • Bolt on carburetor replacement (designed to fit single & dual carb manifolds
  • Throttle body mounted ECU – no extra boxes to mount
  • Supports up to 650hp (4 injector version) and 1250hp (8 injector version)
  • 4 wire vehicle connection (Battery +, Battery - , Switched Ignition & RPM)
  • Integrated fuel pressure regulator
  • Integrated ignition timing control & coil driver
  • Color touchscreen for setup and gauge views
  • Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Available in base & master kits (Master kits include complete fuel system: fuel pump, filters, feed and return hose and all fittings including fuel tank return line bulkhead fitting.)
  • The included Wideband Oxygen Sensor provides realtime Fuel Map Learn!


All EFI systems purchased from efisupply.com include a ECU calibration matched to your application. We have a large library of naturally aspirated and power adder calibrations and are likely to have the file you need. If we don't already have it, we'll work with you to develop a new calibration for your combination.


Sniper EFI Master Kits (Includes fuel pump/filter kit)



Holley Sniper EFI Master Kit (click description to see kit contents)
P/N 550-510K, Sniper EFI w/ fuel system, shiny finish
P/N 550-511K, Sniper EFI w/ fuel system, black ceramic finish


Sniper EFI Basic Kits (do not include fuel pump/filter kit)



Holley Sniper EFI Basic Systems (click description to see kit contents)
P/N 550-510, Sniper EFI - w/ shiny finish, no fuel system
P/N 550-511, Sniper EFI - w/ black ceramic finish, no fuel system
We work hard to provide competitive pricing on our entire offering of aftermarket electronic fuel injection systems and components, if you find anything we sell somewhere else for less contact our sales staff at sales@efisupply.com and we'll do out best to match or beat their price!


Click here to download a Holley EFI Product Catalog