First Ive heard of a 6.2 breaking, that engine is a beast!! The 2017 Aluminum truck's 6.2 is supposed to gain 25hp and get much better gas mileage, Iam already saving my money for one lol I also hear the 5.3 will be up to 390 hp and a possible Supercharger option. None of this is certain but we all know its coming soon, aluminum that is.. Next Fall could be interesting
Iam still waiting on to add a Dynomax 39529 Cat-Back but I will say the K&N 66 Series CAI helped the throttle response with only 14K miles on my 14 Silverado 5.3 it was worth the $198 I spent on it. Iam now debating on a BlackBear Tune with the EFILive or Diablo but leaning toward the Blackbear, I emailed them this morning but since their on the WestCoast now it may take awhile to hear from them. I just wish these companys would talk to you instead of email, the world is turning anti social because of the internet "lol" <- Sarcasm