2013 Chevy Silverado 1500 5.3L
Was kinda getting a little frustrated with the performance of it at first. After about 300 miles on it, the truck was still Bogging down at times when I would floor it or give it a lot of gas. But after talking to a employee at S&B he told me to leave the battery cables disconnected overnight, cause the computer needs time to completely reset. After reconnecting? the cables it fixed the problem. Can't tell yet about gas mileage but throttle response is noticable. 2 Thumbs up!!