tune

Hey guys, I just picked up a 2011 Sierra Denali AWD with the 6.2, all stock. Im looking to do the basic performance upgrades (filter, tuner and exhaust). Any recommendations on what plug in tuners I should take a look at? Thanks

Hey, I'm new to the Forum. I have a 2001 Sierra with a 5.3L V8, I just put a new HYPERTECH Max Energy tuner into it and I'm wondering if anyone could help me on tuning my transmission shift points etc to gain the most power yet still conserve the fuel economy. Also if anyone has any suggestions...