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Holley ECU Mounting Brackets for 1979-1998 MUSTANG - 554-156
Part Number: HLY-554-156
Computer Mounting Brackets, Holley EFI, Dominator ECU, Mounting Bracket, Steel, Black Finish, for Under Passenger Seat, Ford, Mustang, Fox Body, Each
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Estimated Ship Date from OH, TX: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
554-156
Part Type:
Product Line:
Summit Racing Part Number:
HLY-554-156
UPC:
090127072202
Mounting Bracket Material:
Steel
Mounting Bracket Color:
Black
Quantity:
Sold individually.
Notes:
Bracket is exclusively made to mount a Holley Dominator ECU under the front passenger seat. Will only work with factory seats and seat tracks.
Holley ECU Mounting Brackets
Holley ECU mounting brackets allow you to comfortably install either the Dominator ECU, Holley HP, Terminator X, or Terminator X-MAX under your Mustang's front passenger seat. They're designed to work with stock seats and seat tracks (modified/race seats may or may not accommodate them). You simply route all your ECU harnesses through the firewall--properly route the wires, install the unit followed by the ECU, and then reconnect your wires and go! Use your laptop to fine-tune the ECU without popping the hood and protect it from engine bay heat with Holley ECU mounting brackets. Order the brackets recommended for your application.
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Some parts are not legal for use in California or other states with similar laws / regulations
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