Thomas Hill

I have a stock 2016 LT Suburban 5.3 6L80 transmission, 80k miles. Just finished a transmission fluid/filter swap, old fluid was pretty nasty despite being flushed by previous owner around 40k miles. Im looking to install a simple tune that improves the longevity of the transmission and engine. Any advice? I have a DiabloSport Predator tuner in a Dodge Charger that I have been very happy with (Turns off MDS/AFM, 91 Octane tune). I dont have any experience with tuners outside of this simple box tune. I'm open to something more custom, but happy to go with another simple solution like this. I dont have any inspections or emissions testing to worry about.