GMC's 3.0-liter Duramax was updated in 2023 with new steel ... New for 2024 is an available active exhaust system for SLT, Denali, Denali Ultimate, AT4, and AT4X. Engineers worked to provide ...

The latter figure makes the 3.0-liter Duramax the torque champ of the Silverado 1500 range—on the internal-combustion side, anyway. All of that power is delivered in stoic silence too.