Performance Chip
Considering performance chip for 07 Silverado 2500 DuraMax pulling Jayco 37' fw. All I input appreciated.
Forum Discussion
As I was passing a line of RV's at 80mph, in a passing lane at 6000ft in the NM hills, pulling a 10,000lb 5er with a 3500lb boat attached, I though Hmmmm this Duramax does not really need a tuner, it is fine stock.......:D
