Skip to product information
1 of 7

Holley

Holley Sniper HO550-511K EFI Self-Tuning Fuel Injection System (Master Kit), Black

Holley Sniper HO550-511K EFI Self-Tuning Fuel Injection System (Master Kit), Black

HO550-511K
Regular price $2,596.00 AUD
Regular price Sale price $2,596.00 AUD
Sale Sold out
Tax included. Shipping calculated at checkout.

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!



  • Brand:Holley Sniper
  • Manufacturer's Part Number:550-511K
  • Part Type:Fuel Injection Systems
  • Product Line:Holley Sniper EFI Self-Tuning Fuel Injection Systems
  • Self Tuning: Yes
  • User Tunable: Yes T
  • iming Control Compatible: Yes
  • EGR: No
  • Transmission Controller Included: No
  • Injection Style: Throttle body
  • Metering Style: Speed density
  • Power Adder Compatible: No
  • Intake Manifold Included: No
  • Fuel Rails Included: Yes
  • Throttle Body Included: Yes
  • Throttle Body Mounting Flange: 4-barrel square bore
  • Venturi Quantity: 4
  • Venturi Diameter (mm): 42.88mm
  • Airflow Rate (cfm): 800 cfm
  • Throttle Body Material: Cast aluminum
  • Throttle Body Finish: Satin black
  • Injectors Included: Yes
  • Injector Size (lbs/hr): 100 lbs./hr.
  • Calibration Module Included: Yes ECM Included: Yes
  • Wiring Harness Included: Yes
  • Oxygen Sensor Included: Yes
  • Fuel Pump Included: Yes
  • Fuel Pressure Regulator Included: Yes
  • Distributor Included: No
  • MAP Sensor Included: Yes
  • IAT Sensor Included: Yes
  • TPS Sensor Included: Yes
  • IAC Motor Included: Yes
  • Quantity: Sold as a kit.
  • Notes: Kit includes 4 injectors and can support up to 650 hp. Master kit includes inline fuel pump, filters, hose, hardware and fittings.

Manufacturer Part Number:

View full details
  • Quality Brands

    We only sell quality genuine products - with brand names you can trust, you know that you are getting the best products for your build complete with limited manufacturers warranty

  • Fast & Efficent

    We use a number of great couriers to get your parcel to you ASAP! In a rush? Give us a call and ask about an 'expedited order' or enquire on current ETAs!

  • Zero Regret - Hassle Free Returns

    We accept returns for up to 30 days, our returns are hassle free when following our return guidelines and policies and most items can even come back on our capped price Australia Post returns, making it a cost effective process to send your item back if it's not quite right.

  • Experienced Team

    Our team are all passionate about the Automotive Industry and involved with lots of avenues of Motorsports. We have mechanics, engine builders and die-hard enthusiasts here to answer your questions or give you expert advice for your ride - just give us a call!

1 of 4

Found a better deal elsewhere?

We try to keep our pricing competitive for all our customers - if you have found a better deal elsewhere, send us an email here and we will do our best to match offers.
(Ensure you include the part number and a link to the competitors price!)