Ok guys hope someone can help I have a 07 Silverado classic 4.8L 13,000 miles and it is slow as a turtle. with on 13 mpg city 15mpg highway. K@nN drop in filter I wont be adding any performance mods but was wondering if I got a tuner for could it wake this truck up just alittle and maybe better gas milage. Tranny seems to stay in first gear to long. If so what would be the cost I could spend up to 1,000 Including labor for a little better ride.
Thanks
big6six