harmon6.2

hi all i just purchased a 2012 chev with the 6.2. and im wondering if this truck goes into 4cyl mode? i have drove a few 5.3s and they show it on the DIC going to 4cyl mode. I have never seen this on my truck. Also what are some good performance mods? I installed a K&N on my dads 2012 6.2 and that seemed to wake it up and the dyno sheet they sent with showed almost 17hp and tq gain. i called the local dyno shop and they said they get about 20hp with a tune. any suggestions on exhaust and improvements? thanks all

Byrdman11

iTrader: (1)

The 6.2 don't have dod but it does have vvt=variable valve timing. I have the cold air kit, muffler, and a tune. Didn't see must. I'm going turbo. O welcome!!