Haltech NEXUS Rebel LS Plug In ECU and Harness KitWith the Rebel LS, all the hard work is done. It is the best, quickest, and easiest way to get your LS swap up and running! ECU designed from the ground up to suit GM's popular LS engine platform Start up is a breeze thanks to the new LS Set up Wizard in our NSP software Comes complete with an easy to install harness to suit multiple GM LS applications Easy integration with Haltech dashes, PDMs, sensor kits, and accessories Kit Supports Gen III