DPF, EGR, Diesels & Tuning

The aftermarket has changed massively for DPF-equipped trucks. We chat with Nick Priegnitz, owner of Calibrated Power, about tuning new trucks. Does a tuned emission-compliant truck lose durability? Is CARB testing needed to sell tunes? How tunable are the 10 speed automatics from Ford and GM? Nick answers these questions and tons more!