Chevy Silverado and GMC Sierra Forum banner
1 - 1 of 1 Posts

· Supr Moderator AutoTech SS-Guru Mbr Extraordinaire
2015 High Country Duramax
20,657 Posts
Night and day difference compared to the canned tunes. Lew is absolutely first class when it comes to tuning these trucks in mostly stock form.

Once you get into mods other than bolt ons, then it may be best to look into a local shop that is well known for tuning for the mods you have. But you simply don't get any better than Lew for a bolt on truck.
1 - 1 of 1 Posts