This new LS2 harness includes all of the circuits and computer interface technology needed in a clean and streamlined package. The LS2 harness is built to demanding QS9000 international standards using only the highest quality TXL high temperature wire and factory crimped with OEM type premium tooling. The color-coded and labeled wiring, plus easy to follow instruction manual assures a painless installation. Designed for use on throttle-by-wire LS2 engines with your OEM computer. Like all Painless harnesses, this LS2 engine harness is guaranteed for life.