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Holley Performance 550-444K Terminator Stealth EFI Master Kit

6857153 - 550-444K

w/Trans Control - 4 bbl TB - Incl. Pump/Filter/Hose/TBI Unit/Self Tuning ECU/3.5 in. LCD Tuner/Wiring/Sensors - Classic Finish

550-444K Terminator Stealth EFI Master Kit Holley Performance

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Holley Performance - Terminator Stealth EFI Master Kit - Part#: 550-444K Features:

  • Fully Self-Tuning Ecu - No Laptop Required
  • Trouble-Free w/Fuels An End To Vapor Lock/Fuel Varnish Problems
  • Carburetor Looks With The Drivability Of EFI
  • Timing Control Option For Gm Small Cap Hei/Ford Tfi Distributors
  • Full Color 3.5 Touch Screen LCD For Basic/Advanced Tuning Options
  • Optional Free Software Upgrade For Full Laptop Control
  • Easy Plug And Play Harnesses With Minimal Connections
  • Virtually Maintenance Free Keeps Vehicle Reliable/Re

View the Full List of Automotive Applications »

Below is an abbreviated list of applications for the Terminator Stealth EFI Master Kit.


Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR Sprint Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Exhaust, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.

Shipping Information

  • Item Requires Shipping
  • 25.0 lbs.
  • W14.0000” x H10.5000” x L24.0000”

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