Holley 550-408 Terminator EFI 4bbl Throttle Body Fuel Injection
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Holley 550-408 Terminator EFI 4bbl Throttle Body Fuel Injection

Price: $2,866.99
  • Item #: 550-408
  • Manufacturer: HOLLEY
  • Condition: New
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Terminator EFI 4 BBL Kit w/Transmission Control-Hard Core Gray

Terminator™ EFI 4bbl Throttle Body System with Trans/Control 950 CFM 200-600 HP in Hard Core Gray

PART# 550-408

 Bolt-on one of these Holley Terminator EFI engine management systems, answer a few basic questions, and let the Terminator EFI take control of your ride. They use the same throttle body air entry area design that powers every NASCAR Sprint Cup Series car! 

Holley Terminator EFI engine management systems feature:
* Self-tuning ECU--no laptop required, self-tunes instantly to deliver the perfect
air/fuel mixture in real time for optimized fuel economy and power.
* Virtually maintenance free--keeps your vehicle reliable and ready to drive
* 950 cfm throttle body with CFD (computer designed venturis)
* Patent-pending annular discharge fuel ring for maximum flow and optimum fuel
 atomization--no restrictions or delay in fuel flow like booster designs.
* Serviceable sensors integrated into throttle body and pre-wired for a simple one-
click connection.
* Connections for Ford, GM TH350, and 700R4 transmissions.
* Fits any square Holley 4150-style flanged intake manifold.
* 80 lb./hr fuel injectors support 250-600 hp engines.
* Provides ignition timing control on engines with small cap HEI and Ford TFI
 distributors (requires adapter)
* Terminator ECU can be easily updated to Holley HP ECU specs with a FREE online
 software download; ECU then can be used for LSX, boosted, nitrous, and many
 other applications.
* Trouble-free performance with today's fuels--put an end to vapor lock and fuel
 varnish problems.


Hard Core Gray Throttle Body Unit

Electronic Control Unit

Handheld Programmer

Wiring and all Sensors




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