Austin tells us he’s not done with his Duramax prerunner just yet and has already upgraded the rear shocks to 4.0-inch King Kong six-tube bypass shocks with a fully TIG-welded bed cage to keep ...

Boost for the 6.6L Duramax LML engine in Rick DeWeese’s ’11 Chevrolet Silverado 2500HD is generated by a 68mm Dansville Performance turbocharger.

The 6.6 Duramax Found In Heavy Duty GM Pickups In addition to its groundbreaking fuel injection system, the first iteration of the 6.6L Duramax diesel engine, the LB7, featured 300 horsepower and ...

While many aspects of the 6.6-liter Duramax diesel are highly praised, many owners have experienced trouble with the fuel pump and EGR system. These issues have occurred across the GMC Sierra, and ...