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Holley Sniper EFI Self-Tuning Kit Shiny Finish 550-510 4 Injector 650HP kit


  • $1,358.86 CAD
  • Save $120

Bolt on EFI that won't break the bank!  Bolt-on one of these Holley Sniper EFI engine management systems, answer a few basic questions, and let the Sniper EFI take control of your ride.

Click the video below to see What's in the Box?!?:

Holley just brought EFI within range - introducing Sniper EFI! 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 carburetor vehicle. Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today!  FiTech value with Holley Quality and Technical Support!


  • Bolt on carburetor replacement (designed to fit single & dual carb manifolds)
  • Throttle body mounted ECU – no extra boxes to mount
  • 4 injectors supports up to 650hp 
  • 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!

Want to read the instructions?  Check them out here!

Still not enough?  Read the Quick Start guide here!

Some good wiring advice - don't do any of these!


Don’t see what you’re looking for? Give us a call toll free: 1-877-471-6700 or visit one of our Speed Shop locations.

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