hade on
I hade oine in my 2010 CC1500 and loved it. yes the tune was not as good as a BB tune, but i like the idea of having all the gauges. now if BB tuning could some how use it with there tunes that would be the best think ever. i only know of a Ford tuner who is able to do that. but from my exp. the CTS was awesome on my truck. in extreme mode (where it stayed) it felt like a new truck. then again i also had headers, catless y-pipe, catback, and intake.
so if your looking for performance i would go with a tune. but if u want a lil better performance and some kool gauges, and scan tool than can clear code get the CTS. it was mony well spen in my eyes.
hell im thinking about getting mine back to put on the Tahoe