Was meaning if was cost effective, to purchase and plug in as a preventative before I have a problem.

if I didn't drive so much I would be more than willing to help test, outwith how much driving I do, I would hate to get stranded 3 to 16 hours from my house.
if I worked local, then if something happened, I could just get a ride home and get my truck and a trailer and haul home.

But if I kept my skreem and my car and just had to plug back in, if it would even work, or if codes would be off and would have to get ECU work done for it to work again.