725 SOUTH LA CADENA DRIVE COLTON CA USA 92324
909.291.7550

HOLLEY EFI HP EFI ECU GM LS2/LS3/LS7 58x AND WIRING HARNESS KIT

HOLLEY EFI HP EFI ECU GM LS2/LS3/LS7 58x AND WIRING HARNESS KIT
HOLLEY EFI HP EFI ECU GM LS2/LS3/LS7 58x AND WIRING HARNESS KITHOLLEY EFI HP EFI ECU GM LS2/LS3/LS7 58x AND WIRING HARNESS KITHOLLEY EFI HP EFI ECU GM LS2/LS3/LS7 58x AND WIRING HARNESS KIT

Part Number: HLY-550-603

Price: $2,686.95
USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor
Quantity:

HOLLEY EFI HP EFI ECU GM LS2/LS3/LS7 58x AND WIRING HARNESS KIT Product Description:

Overview

Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water/meth? This HP EFI kit can control that too! Stop re-flashing your factory ECU every time you make a performance modification.

Features:

  • Simple Installation - Plug and Play control of GM LS2/LS3/LS7 engines. Just plug the harness into your factory sensors, wire the power and grounds and you are ready to take complete control of your LS engine.
  • More Functionality - Provides significantly more functionality than OEM or other competitive ECUs. (boost control, nitrous control, water/meth injection, plus a host of additional inputs and outputs to control fans, pumps, relays etc.)
  • Easy To Use - Laptop programmable ECU includes a variety of base maps that will have you hitting the cruise or track in no time.
  • Ideal For Everything - including stock 5.3L engine swaps or all out, 3,000+ horsepower race cars that need a simple and powerful ECU and harness solution.
  • Industry Leading Self Tuning Fuel Strategy - means less time tuning and more time enjoying the power of your LS vehicle.
  • Kit includes ECU, harness, communication cable, software, USCAR (EV6 Style) injector connectors, and Bosch wideband O2 sensor, designed to be used with GM LS2/LS3/LS7 engines with factory GM coils and a 58 tooth crank sensor.
  • ECU is fully potted and can be mounted in the engine compartment or interior.
  • Sealed automotive and marine grade connectors.
  • 1-5 Bar MAP sensor capability.
  • Optional plug and play hand-held programmer, 5.7" touch screen and digital gauges are available for ultimate control and vehicle monitoring.
  • ECU is certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance.

Note: Designed for use with GM LS2/LS3 and LS7 engines with 58x crank sensor, re-use factory GM ignition coil harnesses.


Specifications

Brand: Holley EFI
Part Number: HLY-550-603
Other Part Number: 550-603
Part Type: Engine Management
Transmission Controller Included: No
High Impedance Injectors: Up to 16
Low Impedance Injectors:
Up to 16
Coils: Up to 8
Digital Inputs: 4
Wideband Controller: Yes
Wideband Channels: 1
CANBUS Enabled: Yes
CANBUS Networks: 1
Knock Control: Yes
Knock Channels: 2
Drive-By-Wire Capable: No
VVT Control: No
Boost Control: Yes
Nitrous Control: Yes
Traction Control: Yes
Launch Control: No
Engine Protection: Yes
Flex Fuel Compatible: No
Multi-fuel Capable: No
Data Logger: Yes
Oxygen Sensor Included: Yes
Display Included: No
Handheld Controller Included:
No
Quantity: Sold as a kit.
In Store Pickup: Colton, CA, USA

Application

Designed for use with GM LS2/LS3 and LS7 engines with 58x crank sensor, re-use factory GM ignition coil harnesses.

Suggested Parts

Product Video

Warranty

Holley Performance Products, Inc. products are warranted to be free from defects in material and workmanship for a period of 90 days from the date of purchase, except Avenger series carburetors, which carry a lifetime warranty on parts and a one-year warranty on labor. Any Holley deep cell battery also carries a one-year warranty. For select carburetors and superchargers, there will be a core charge. If the part qualifies, there will be a letter and a call tag included in the box from Holley.

The part must be returned to Holly, and if it is in acceptable condition, Holly will issue credit directly to the customer. In addition, Holley Performance Products, Inc.'s limited warranty specifically does not apply to products which have been modified or altered in any way, subjected to adverse conditions such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, corrosion or faulty repair, or used in applications other than those recommended by Holley Performance Products, Inc.

This warranty does not warrant and disclaims all liability for products used in racing activities and/or applications, other than those specifically recommended by Holley Performance Products, Inc.

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