stl_ls1gto

I assume you mean mpg, not mph. Hp tuners, way better than any handheld. Don't get me wrong though, if I drive the truck hard, I will be in the high 15's for the tank. Stop and go, and reving above 2000rpms or so just kills gas mileage on the truck.

I will get some pics when I can, not able to do it from my phone. I rarely get a day off where I can use my computer at home so it might take a little while before I can get some up. The one pic I have on my phone that I was going to use for my profile pic is too large to upload.

What's up guys, new to the site - but have had my 2011 gmc ccsb 6.2L for a little over a year. My first truck, and I love it. It was a demo with 5000 miles when I got it a year ago, and I have around 23500 miles on it now. Went with the gmc chrome grill, and put a backflip f1 bed cover on it. also scored a set of new takeoff denali 20in chrome wheels/tires from a dealer for 1000 bucks so I run those in the summer, and put the factory 17's that came with the max tow package on for the winter. Got the rear wheel well guards, as well as factory painted mudflaps all around. Aftermarket parts include the volent cold air intake, with the separate extension that draws air from underneath the front air dam. I also replaced the stock muffler with a direct bolt on dynomax ultraflow muffler. The sound is perfect. No need to remove the stock resonator of get new exhaust pipes on this truck since the factory 3in pipe is great. I did not want to have any drone under cruising conditions, but wanted more sound under part throttle and wot acceleration, and this muffler is perfect for that. I also have hp tuners, so I have it tuned with that, raised the top speed limiter for my new tires, and adjusted speedo for my tires. Also changed theshift speeds a bit so it will not kickdown as easy so it will stay in lockup in 5th and 6th gears at a lower speed with a little more throttle than the factory settings to boost fuel economy. Highway, I get 18-21 mpg now, with the higher values at 65 mph cruise set and the lower around a 70mph cruise. My tank averages with my city commute is 16.5mpg usually over the whole tank. Anyway, love the truck - best $32000 I ever spent. (Sticker was $42k)