If you are running a Gen III Engine, we have a Harness & ECM Package for you. If you are building a Hot Rod - Muscle Car - Off Road Vehicle then our Plug-N-Play Packages is as easy as 1, 2, 3. All Wire Harnesses are tagged and come with instructions.
All Custom Gen III Wire Harnesses are professionally built to excede OEM standards. The harness shown on the page is an example of a LS1 with 4L60E setup. Select from the list of harness packages below for more details about each harness package.
All Gen III Harnesses come with these Standard Features:
All Engine & Transmission Harnesses that we offer are built using OEM Style Wires, Connectors & Terminals. The Harnesses are also enclosed in Heat Resistant Black Split Loom Tubing for a factory look. Each harness is tested prior to shipment and are designed with the Hot Rod Enthusiast in mind. The harness shown on the page is an example of a LS1 with Manual T56 setup. Package Includes:
All Custom Harness Packages are Custom built to Order. Most Orders will ship after 14 days. ECM programming specs are to be provided by the customer. Please visit our ECM Programming Page to download a copy of our Programming worksheet. |
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We use Factory GM/Delco ECMs. We find these superior to the Aftermarket & Boat Engine controllers used by other companies. Factory ECMs, unlike Aftermarket ECMs, allow you to control your transmission. Another avantage of Factory ECMs is that any GM Dealer/Independent Technician cam scan the ECM via the Diagnostic Port.
All Engine & Transmission Harnesses that we offer are built using OEM Style Wires, Connectors & Terminals. The Harnesses are also enclosed in Heat Resistant Black Split Loom Tubing for a factory look. Each harness is tested prior to shipment and are designed with the Hot Rod Enthusiast in mind. The harness shown on the page is an example of a LS1 with 4L60E setup. Package Includes:
All Custom Harness Packages are Custom built to Order. Most Orders will ship after 14 days. ECM programming specs are to be provided by the customer. Please visit our ECM Programming Page to download a copy of our Programming worksheet. |
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We use Factory GM/Delco ECMs. We find these superior to the Aftermarket & Boat Engine controllers used by other companies. Factory ECMs, unlike Aftermarket ECMs, allow you to control your transmission. Another avantage of Factory ECMs is that any GM Dealer/Independent Technician cam scan the ECM via the Diagnostic Port.
All Engine & Transmission Harnesses that we offer are built using OEM Style Wires, Connectors & Terminals. The Harnesses are also enclosed in Heat Resistant Black Split Loom Tubing for a factory look. Each harness is tested prior to shipment and are designed with the Hot Rod Enthusiast in mind. The harness shown on the page is an example of a LS1 with manual T56 setup and a LS2 Intake with DBW Throttle Body. Package Includes:
All Custom Harness Packages are Custom built to Order. Most Orders will ship after 14 days. ECM programming specs are to be provided by the customer. Please visit our ECM Programming Page to download a copy of our Programming worksheet. |
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We use Factory GM/Delco ECMs. We find these superior to the Aftermarket & Boat Engine controllers used by other companies. Factory ECMs, unlike Aftermarket ECMs, allow you to control your transmission. Another avantage of Factory ECMs is that any GM Dealer/Independent Technician cam scan the ECM via the Diagnostic Port.
All Engine & Transmission Harnesses that we offer are built using OEM Style Wires, Connectors & Terminals. The Harnesses are also enclosed in Heat Resistant Black Split Loom Tubing for a factory look. Each harness is tested prior to shipment and are designed with the Hot Rod Enthusiast in mind. The harness shown on the page is an example of a LS1 with 4L60E setup and a LS2 Intake with DWB Throttle Body. Package Includes:
All Custom Harness Packages are Custom built to Order. Most Orders will ship after 14 days. ECM programming specs are to be provided by the customer. Please visit our ECM Programming Page to download a copy of our Programming worksheet. |
||
We use Factory GM/Delco ECMs. We find these superior to the Aftermarket & Boat Engine controllers used by other companies. Factory ECMs, unlike Aftermarket ECMs, allow you to control your transmission. Another avantage of Factory ECMs is that any GM Dealer/Independent Technician cam scan the ECM via the Diagnostic Port.
All Engine & Transmission Harnesses that we offer are built using OEM Style Wires, Connectors & Terminals. The Harnesses are also enclosed in Heat Resistant Black Split Loom Tubing for a factory look. Each harness is tested prior to shipment and are designed with the Hot Rod Enthusiast in mind. The harness shown on the page is an example of a LS3 with 4L70E setup. Package Includes:
All Custom Harness Packages are Custom built to Order. Most Orders will ship after 14 days. ECM programming specs are to be provided by the customer. Please visit our ECM Programming Page to download a copy of our Programming worksheet. |
||
We use Factory GM/Delco ECMs. We find these superior to the Aftermarket & Boat Engine controllers used by other companies. Factory ECMs, unlike Aftermarket ECMs, allow you to control your transmission. Another avantage of Factory ECMs is that any GM Dealer/Independent Technician cam scan the ECM via the Diagnostic Port.
All Engine & Transmission Harnesses that we offer are built using OEM Style Wires, Connectors & Terminals. The Harnesses are also enclosed in Heat Resistant Black Split Loom Tubing for a factory look. Each harness is tested prior to shipment and are designed with the Hot Rod Enthusiast in mind. The harness shown on the page is an example of a LS3 with 4L70E setup. Package Includes:
All Custom Harness Packages are Custom built to Order. Most Orders will ship after 14 days. ECM programming specs are to be provided by the customer. Please visit our ECM Programming Page to download a copy of our Programming worksheet. |
||
We use Factory GM/Delco ECMs. We find these superior to the Aftermarket & Boat Engine controllers used by other companies. Factory ECMs, unlike Aftermarket ECMs, allow you to control your transmission. Another avantage of Factory ECMs is that any GM Dealer/Independent Technician cam scan the ECM via the Diagnostic Port.
All Engine & Transmission Harnesses that we offer are built using OEM Style Wires, Connectors & Terminals. The Harnesses are also enclosed in Heat Resistant Black Split Loom Tubing for a factory look. Each harness is tested prior to shipment and are designed with the Hot Rod Enthusiast in mind. The harness shown on the page is an example of a LS3 with 4L70E setup. Package Includes:
All Custom Harness Packages are Custom built to Order. Most Orders will ship after 14 days. ECM programming specs are to be provided by the customer. Please visit our ECM Programming Page to download a copy of our Programming worksheet. |
||
We use Factory GM/Delco ECMs. We find these superior to the Aftermarket & Boat Engine controllers used by other companies. Factory ECMs, unlike Aftermarket ECMs, allow you to control your transmission. Another avantage of Factory ECMs is that any GM Dealer/Independent Technician cam scan the ECM via the Diagnostic Port.
All Engine & Transmission Harnesses that we offer are built using OEM Style Wires, Connectors & Terminals. The Harnesses are also enclosed in Heat Resistant Black Split Loom Tubing for a factory look. Each harness is tested prior to shipment and are designed with the Hot Rod Enthusiast in mind. The harness shown on the page is an example of a LS3 with 4L70E setup. Package Includes:
All Custom Harness Packages are Custom built to Order. Most Orders will ship after 14 days. ECM programming specs are to be provided by the customer. Please visit our ECM Programming Page to download a copy of our Programming worksheet. |
||
We use Factory GM/Delco ECMs. We find these superior to the Aftermarket & Boat Engine controllers used by other companies. Factory ECMs, unlike Aftermarket ECMs, allow you to control your transmission. Another avantage of Factory ECMs is that any GM Dealer/Independent Technician cam scan the ECM via the Diagnostic Port.
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We offer Harness Kits for GM Gen III (24x Tooth Reluctor Wheel) Engines. This includes 1999-2004 LS1/LS6 and 1999-2007 4.8L - 5.3L - 6.0L Engines and Transmissions. Some early model LS2 Engines also have a 24x tooth reluctor wheel. A 24 tooth engine requires a single ECM and uses a "Black" crank sensor.