Fitment: The harness is designed specifically for LS3 engines 2003 to 2007 and is compatible with T56 transmissions using electronic throttle control (drive by wire) and 4.8, 5.3 and 6.0 litre engines. Independent Control: This harness isolates the engine from the vehicle original electrical system for independent control. This allows you to autonomously adjust the parameters and characteristics of the engine to achieve the best driving performance. Drive by Wire: Standalone harness supports control throttle position through electronic signals instead of typical mechanical linkage. This technology can provide more precise throttle response and control. Highly : With wires and connectors, this wiring harness can withstand extreme conditions such as high temperature, humidity and vibration, and provide stable performance over long periods of time. Perfect Match: The engine independent harness has connectors and wiring perfectly matched to the target vehicle, ensuring smooth installation and easy installation. 1 x Engine Standalone Harness 2 x Screws 2 x Washers. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.
