Hi everyone! I'm new to this site and just had a few questions. I just got my first duramax a few weeks ago. 2013 denali hd. I have been reading a lot about tunes and just can't decide how to go. I came from a spartan tuned powerstroke with all deletes. This denali is none stock with 108k miles on it. I am going to add a kennedy lift pump and filter system and do a full egr delete and 4 or 5 inch turbo back exhaust. Just not sure what tunes and from who. I will get a edge cts2 monitor. But i know efi live is the only way to go. If you dont mind letting me know your tunes and who you got them from and how you like them I would certainly appreciate it. Thank you!