Automobile(s): 2011 CTS Coupe 3.6, Sport and Luxury 1&2 / 2012 CTS Wagon
Re: Spare PCM
www.car-part.com I use this as a look up quite a bit for some parts for other applications. They start at $100 and go up. There are compatible part numbers from other 3.6's, but obviously the programming IN the ECU for our cars will be different. So if you are programming it anyhow, as long as it is a compatible ECU you will be fine.