I am looking to add these gauges to my car as well. I called GM Parts East this morning and they told me that part #20963976 (gauges, bezel, wire, etc) was the whole kit. It costs $305. He told me that part #22858071 was for an export?? I am going to call around to a few other places just to make sure this is correct.
2013 Camaro 1SS 1LE Inferno Orange