About Our Products: 1. All of our harnesses are built with OE Quality and better 2. Harnesses receive a quality check before shipment. 3. All Harnesses are long enough for the PCM to be mounted under the dash (ADDED 36" FOR EASY COMPUTER MOUNTING) 4. For GM Color Codes. Many Companies Do NOT Use GM Color Codes. 5. High Quality Reinforced Ring Terminals 6. 1200 Degree Fiberglass Braid on All Circuits Ran by Heat 7. All Factory CPA (Connector Position Assurance Locks) 8. Harness comes with a complete install instruction packet. 9. All harnesses come with the needed Dash Connections, which include Speedometer, Tachometer, Park Neutral, TCC, Malfunction Indicator, and a DLC Port. .