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 engines from '97 - '04 drive-by-wire LS1 and LS6 Corvettes and CTS-V's with T56 manual or non-electronic automatic transmissions.