• This upgraded harness is built to meet strict OE standards. It features high-performance copper core wires for optimal electrical conductivity. 
• The harness is extended by 36 inches to accommodate PCM mounting under the dash, complete with a grommet for secure installation. 
• All circuits are protected with high-quality reinforced ring terminals and 1200-degree fiberglass braid for superior heat resistance. 
• The harness includes all necessary dash connections, including Speedometer, Tachometer, Park/Neutral, TCC, Malfunction Indicator, and a DLC Port. 
• This specific harness is designed for a 3-wire Mass Air Flow (MAF) sensor and a 1-wire alternator. 

How to Install:

1. Remove the old harness from the original car, install a new harness, and dock the corresponding plugs for plug-and-play.
2. The length of each line is different and the connectors are different. Please select the appropriate connector for assembly.
3. Professional installation is highly recommended. The whole process takes about 1-2 hours and requires a certain maintenance technology foundation.
Note1. If your car has been modified, this cable bundle may not be installed properly.
Note2. Before using, please make sure that you have not replaced the original accessories, otherwise, it will affect the use.

Fitment

For Chevy GMC Cadillac Hummer Trucks 1997-2006 Vortec 4.8L 5.3L & 6.0L, 4L60E Transmission.
For Drive by Cable (DBC) Throttle Body LS1 Engines!
Note: Not Including Flex-Fuel Injector Adapters Replacement for Delphi/Multec Factory EV1/EV6.

Vehicle compatibility charts are for REFERENCE ONLY. Check your vehicle to match your needs

Package Includes:

1x Complete LS Harness;
2x Mounting Screw & Washer;
1x Installation Instruction. 

NOTE: