In terms of dependable, brute force, you can't go wrong with a Chevy Silverado HD or GMC Sierra HD featuring ... One of these systems, the exhaust gas recirculation (EGR), grabs exhaust gas ...

the Duramax V-8 features a variable-vane turbocharger that acts as an exhaust brake, helping control speed on downgrades for more confident towing. The foundation of the 2015 Silverado HD lineup ...