Why 5.3? I had a 2016 5.3 and then switched it out for a 2018 6.2 and could not be happier! The power helps the feel tremendously and craziest thing is I get better GAS mileage! like 1-2 more per gallon. Both had an eight speed too. Night and day difference, I'm telling you. Sent from my SM-N960U using Tapatalk