Replacement Base Harness GM LS GEN3/4

This LS engine harness is built for a clean Link ECU install and takes a lot of the pain out of wiring a custom LS setup. It is a smart choice when you want reliable wiring without spending days building every branch yourself.

Applications: Gen 3 and Gen 4 LS swaps needing a terminated replacement harness. Buy it when you want a cleaner swap, easier troubleshooting, and a faster path to first start.