Availability
Fuel Injection Systems Wiring Harnesses, Holley EFI, Drive-by-Wire Harness, GM LSx, for Dominator EFI Systems, 6-Pin, Each
Part Number: HLY-558-406
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Components, Holley EFI, CAN Input/Output Module, Pre-Terminated Wiring, for EFI Systems, HP, Dominator, Terminator X, Kit
Part Number: HLY-554-165
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Controller, Sniper, 3.5 in. LCD, Touch Screen, for Sniper EFI Systems, Tuning Options, Basic and Advanced, Mount, Harness, SD Card, Each
Part Number: SNE-553-115
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel System Pump Kits, Sniper EFI, 80 gph Pump, 20 ft. Vapor Guard Hose, Pre and Post Filters, Earl's Fittings, Kit
Part Number: HLY-526-5
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Components, Terminator X, Upgrade, 3.5 in. Touch Screen, Handheld Controller, Mounting Sleeve, Power Cord, Wire Harness, Each
Part Number: HLY-553-201
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Controllers, Sniper 2 EFI, 3.5 in. LCD, Touch Screen, for Sniper 2 EFI Systems, Tuning Options, Basic and Advanced, Mount, Harness, SD Card, Each
Part Number: SNE-553-202
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel System Pump Kits, Holley EFI, 3/8 in. Diameter Rubber Hose, 40 ft. Length, Mounting Clamps, Black Anodized Aluminum Fittings, Kit
Part Number: HLY-526-10
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel System Kits, Holley EFI, Fuel System Plumbing, Black Hose, Rubber, 3/8 in.ID, 20 ft. Long, Clamps, Fittings, Black Anodized, Kit
Part Number: HLY-526-9
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, Drive-by-wire Harness, GM LSx Early Truck, MPFI, SFI, TBI, for Dominator EFI Systems, Each
Part Number: HLY-558-429
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Wire Harnesses, Sniper EFI, HyperSpark, Main Harness, Throttle Body Injection, Plug-n-Play, 40 amp Relay Included, Each
Part Number: SNE-558-328
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Dominator EFI, GM LSx, Dual Drive-by-Wire Harness, for Throttle Bodies to Dominator EFI Systems, Each
Part Number: HLY-558-411
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, Terminator, Throttle Body Systems, Plug-and-Play, Upgrade Harness, for 205 lb./hr. Injectors, Each
Part Number: HLY-558-439
Not Yet Reviewed
Estimated Ship Date: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Injection System Reservoirs, Holley EFI, 1/2 Gallon, Plastic, 6 in. Wide x 4 in. Deep x 5 in. Tall, with Float, Filter, Tubing, Relay, Fittings, Kit
Part Number: HLY-557-101
Not Yet Reviewed
Estimated Ship Date: Mar 5, 2026 if ordered today
Estimated Ship Date: Mar 5, 2026 if ordered today
Fuel Injection System Components, Holley EFI, 3.5 in. LCD Touch Screen, Upgrade, Basic Tuning, Data Monitor, Black Case, Mount, Wire Harness, Kit
Part Number: HLY-553-108
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Components, Holley EFI, Module Only, CAN Input/Output, for Holley EFI Systems, HP, Dominator, Terminator X, Kit
Part Number: HLY-554-166
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, Pro-Dash, Input/Output, Unterminated, 2 and 3 Conductor Cable, 10 ft. Long, Pins, Plugs, Each
Part Number: HLY-558-456
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, GM Gen V LTx, Drive-by-Wire, Throttle Body Harness, for Terminator X and X Max ECUs, Each
Part Number: HLY-558-468
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, Replacement, MPFI, Mass Airflow, Injector Harness, LS Multec 2, Chevy, Truck, 4.8-6.0L, Each
Part Number: HLY-558-214
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Components, Holley EFI, Hemi, Dual Throttle Body, Drive-By-Wire Harness, for Dominator EFI, Chrysler, Dodge, Ram, 5.7-6.4L, Each
Part Number: HLY-558-450
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, Replacement, Ford V8, Injector Harness, Multi-Port, for HP, Dominator EFI Systems, Each
Part Number: HLY-558-209
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Injection Solenoids, Holley EFI, Water/Methanol, Solenoid/Nozzle, 1,000 cc/min, Aluminum, Black Solenoid Cover, with Fittings, Wire Harness, Each
Part Number: HLY-557-106
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, Ford Coyote, Drive-By-Wire Harness, Multi-port Style, for HP/Dominator EFI System, Ford, 5.0L, Kit
Part Number: HLY-558-422
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, Ford GT500, 3V Drive-by-Wire, Throttle Body Harness, Plug-and-Play, Ford, Mustang, 4.6L, 5.4L, Kit
Part Number: HLY-558-461
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, Replacement, Injector Driver harness, Plug-and-Play, MPFI, JB2 Connector, for Dominator ECU, Each
Part Number: HLY-558-219
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, 7.3 L Godzilla, Drive-by-Wire, Throttle Body Harness, for Terminator X, Ford, Each
Part Number: HLY-558-469
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
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