Hey question, ima tell you what my buddy would tell me when he wanted me to explain to him how I install whatever it was I was building or what have you but speak to me like a I’m child lol I understand homes not trucks or engines , but my question is, tuning an engine I’ve read enough but still don’t understand I have the 8spd 5.3 and i still haven’t found something like HPTuners that can work with the 8spd. Is there something out there for the 8spd that I can use ? And what exactly would my mechanic do ,once I get said tuner ?