I have a 2017 RCSB with a 5.3. I bought it about 7 months ago too be just a daily driver. Since I have had it, I added a K&N intake, Texas Speed long tube headers, hood rat cat back, 4.10 gears, plugs,wires, custom tune, and 2” rear lowering shackles. I also swapped out the wheels, did a complete brake job, and shaved the emblems. I have put a little over 20,000 miles on it and it is pretty quick. I am still getting just over 19mpg and I drive around 100 miles almost every day. Get one. You won’t regret it!