L s standalone e c m and harness. Make your l s swap easy and affordable. This is a pre programmed e c.M with novats for a stock lS 4.8l 5.3l 6.0l and 4l60/4L80E. 24x reluctor wheel. Can also be ran with non electronic transmissions such as manual, th350, th400 and others. Also, have a couple of injector adapter pigtails available. Located in Sawyer.