Does anyone have any tunes for a 5.3 I want to try them out in my girlfriends truck.
T Toner619 New member Jan 18, 2015 12 0 1 Apr 12, 2015 #1 Does anyone have any tunes for a 5.3 I want to try them out in my girlfriends truck.
TheBac Why do I keep doing this? Staff member Apr 19, 2008 15,610 1,866 113 Mid Michigan Apr 12, 2015 #3 Might want to check over at GMFullSize.com or PerformanceTrucks.net.
