We are very excited to introduce a new cutting-edge harness for the GM LS2. This harness plugs into the stock LS1 computer and retains the throttle-by-wire feature. This harness is 4 feet longer than the standard harness to allow more mounting options for the ECM. NOTE: This harness requires the use of a 2002-03 Corvette ECM. And will only work with the 24X target wheel.