Soon to be owner 2016 ATS-V.

I'm going to be taking the plung and buying my first Cadillac. Yes I'm buying a 2016 ATS-V woohoo lol. I'm wondering about a code reader for the OBDII. I do alot of my own maintenance and repairs on my bmw that I own and would like to do the same with the V. Can anyone help me out with some suggestions for a diagnostic tool? I'm looking for one that does real time logging and possibly coding (unlocking hidden features long coding activating deactivating) stuff like that.. And I would also love to know or see some performance upgrades people have done and suggest. What brands to use what ones to stay away from and what not.. thanks for taking the time to read. Looking forward to joining the V family. Any and all advice is much appreciated..

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