An LS engine swap is a no-brainer when it comes to adding some affordable horsepower to a project car, but any swap comes with its share of headaches, including wiring. That's where TSP's engine and transmission wiring harness comes in. It is designed for 2009-2014 6.2L LY6 and L92 engines from drive-by-wire GM trucks with 4L60E or 4L80E automatic transmissions. It will fit with a '05-'08 15-pin connector.