Availability
Data Acquisition, Holley EFI, 8-channel, CAN EGT, 1/4 in. Stainless Bungs, 1/4 in. Probes, 4 ft. Harness, for HP, Dominator, Terminator X EFI, Kit
Part Number: HLY-554-186
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Digital Dashboard Displays, Sniper 2 EFI, 5 in. Digital Dash, Touch Screen, GPS Speedometer, Calibration Wizard, Odometer, Data Logger, Mount, Kit
Part Number: SNE-553-200X
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Gauge Wire Harnesses, Holley EFI, Replacement, Pro Dash Service Harness, Plug-and-Play, for 553-111, 553-112, Each
Part Number: HLY-558-446
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Gauge Wiring Harnesses, Holley EFI, Replacement, I/O Adapter, Plug-and-Play, for 7 in. Digital Dash, Each
Part Number: HLY-558-432
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquistion Wiring Harnesses, Holley EFI, I/O Adapter and Unterminated Vehicle Harness, for 7 in. Digital Dash, USB Memory Stick Included, Kit
Part Number: HLY-558-433
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Fuel Injection System Wiring Harnesses, Holley EFI, CAN Adapter Harness, Male to Female Adapter, 8 ft. Long, for Racepak or CAN Device, Each
Part Number: HLY-558-453
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquistion Wiring Harnesses, Holley EFI, I/O Adapter and Terminated Vehicle Harness, for 7 in. Digital Dash, USB Memory Stick Included, Kit
Part Number: HLY-558-434
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquisition Components, Holley EFI, EGT Probe, 90 Degree, Open End Tip, 27.5 in Harness, 1/4 in. Probe, Stainless Wire Cover, Each
Part Number: HLY-554-177
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Wiring Harnesses, Holley EFI, Benchtop Harness, Test Harness, EFI Input Connectors, Power Switch, for HP, Dominator, Terminator, Sniper ECUs, Each
Part Number: HLY-558-127
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquisition Components, Holley EFI, EGT Probe, 90 Degree, Open End Tip, 32.25 in Harness, 1/4 in. Probe, Stainless Wire Cover, Each
Part Number: HLY-554-178
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquisition Components, EGT Cap, Stainless Steel, 1/4 in., 8-piece, Set
Part Number: HLY-543-164
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquisition Components, Holley EFI, EGT Probe, 90 Degree, Open End Tip, 18.5 in Harness, 1/4 in. Probe, Stainless Wire Cover, Each
Part Number: HLY-554-175
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquisition Components, Holley EFI, EGT Probe, 90 Degree, Open End Tip, 22.75 in Harness, 1/4 in. Probe, Stainless Wire Cover, Each
Part Number: HLY-554-176
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquisition Components, Holley EFI, EGT Probe, 90 Degree, Open End Tip, 60 in Harness, 1/4 in. Probe, Stainless Wire Cover, Each
Part Number: HLY-554-180
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquisition, Holley EFI, 8-Channel, CAN EGT, Controller Only, 4 ft. Wire Harness, for Holley HP, Dominator, EFI Systems, Each
Part Number: HLY-554-190
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
This product may not be eligible for select promotional offers
Data Acquisition, Holley EFI, Single-channel, CAN EGT, 1/4 in. Stainless Bung, 1/4 in. Probe, for Holley EFI Systems, HP, Dominator, Terminator X, Kit
Part Number: HLY-554-184C
Not Yet Reviewed
Estimated Ship Date: Sep 17, 2025 if ordered today
Estimated Ship Date: Sep 17, 2025 if ordered today
This product may not be eligible for select promotional offers
Data Acquisition, Holley EFI, Single-channel Module, CAN EGT Controller, Dual CAN Connector Harness, for HP, Dominator, Terminator X EFI, Kit
Part Number: HLY-554-188C
Not Yet Reviewed
Estimated Ship Date: Sep 17, 2025 if ordered today
Estimated Ship Date: Sep 17, 2025 if ordered today
This product may not be eligible for select promotional offers
Data Acquisition Components, EGT Cap, Stainless Steel, 1/4 in., Each
Part Number: HLY-543-162
Not Yet Reviewed
Estimated Ship Date: Tuesday 9/2/2025
Estimated Ship Date: Tuesday 9/2/2025
Data Acquisition, Holley EFI, Single-channel, CAN EGT, Stainless Bung, Probe, 60 in. Harness, Pre-terminated Connector, Non-Holley Installations, Kit
Part Number: HLY-554-188A
Not Yet Reviewed
Estimated Ship Date: Sep 17, 2025 if ordered today
Estimated Ship Date: Sep 17, 2025 if ordered today
This product may not be eligible for select promotional offers
Data Acquisition, Holley EFI, Single-channel, CAN EGT, 1/4 in. Stainless Bung, 1/4 in. Probe, Unterminated Output, Non-Holley Installations, Kit
Part Number: HLY-554-184A
Not Yet Reviewed
Estimated Ship Date: Sep 17, 2025 if ordered today
Estimated Ship Date: Sep 17, 2025 if ordered today
This product may not be eligible for select promotional offers
Gauge Wiring Harnesses, Holley EFI, Replacement, Service Harness, CANBus/USB Connectors, for Digital Dash, Each
Part Number: HLY-558-444
Not Yet Reviewed
Estimated Ship Date: Sep 17, 2025 if ordered today
Estimated Ship Date: Sep 17, 2025 if ordered today
This product may not be eligible for select promotional offers
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.