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526-2 Terminator EFI Fuel System Kit
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HOLLEYPART NUMBER: 510-526-2

526-2 Terminator EFI Fuel System Kit

$1,34895$1499.95You Save$151.00
ShippingShips on Feb 18, 2027
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Terminator EFI Fuel System Kits

There's a new self-tuning EFI on the streets and IT'S IN CONTROL!

The Holley Terminator EFI Systems have features not found in any other street EFI system including throttle body technology that is currently used in every NASCAR Sprint Cup Serie car. Installation is easy with no computer experience necessary, simply bolt it on, use the included handheld tuner to answer a few multiple choice questions and let the Terminator EFI take control, the system self-tunes as you drive. If you embrace modern technology and want to take control, the system is upgradable to complete laptop control without the need to purchase another electronic control unit. This carburetor replacement EFI system from the fuel system experts is perfect for street machines, off-road vehicles, trucks, RVs and weekend racers!

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Terminator EFI Features:

  • Fully 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 air-entry area taken from Holley's famous NASCAR throttle body - as found on all NASCAR Sprint Cup Series cars.
  • 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, and other transmission linkages.
  • Fits any square (Holley 4150) flanged intake.
  • 80 lb/hr injectors support 250-600 HP engines.
  • Provides ignition timing control on engines with Small Cap HEI and Ford TFI distributors (requires adapter).
  • ECU fully potted and sealed for protection from vibration, dust and moisture.
  • Terminator ECU can be EASILY updated to Holley "HP" ECU specs with a free online software download. ECU can then be used for LSX, boosted, nitrous,and many other applications in the future as you desire!
  • Trouble-free performance with today's fuels - put an end to vapor lock and fuel varnish problems!

Throttle Body fits any square bore 4150-style intake manifold. Click on images to enlarge.





Part TypeFuel System Kit
Product LineHolley Terminator EFI Throttle Body Fuel Injection Systems
BrandHOLLEY
Package Height8.2
Package Width11.4
Package Length12.6
Weight8.83 PG
Part CategoryPerformance Parts
Fuel Pump IncludedYes
Fuel Line Length (Ft.)16
Fuel Line Diameter-6 AN
Fittings IncludedYes
QuantitySold as a kit
Fuel Line TypeBraided nylon line
Fuel Line IncludedYes
Mounting Clamps IncludedYes
Part FitmentSemi Universal
Fuel Pump TypeElectric
Fitting FinishBlack anodized
Vendor Part Number526-2
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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