One area a diesel responds well to is a larger dose of cooler air. That’s why factory-installed intercoolers are found on all of today’s modern diesel engines from passenger cars to big rigs. An ...

Modifications: 5.9L 24-valve Cummins swap, 12mm P7100 injection pump with 191 delivery valves and 4,000-rpm governor springs, 60mm into 66mm compound-turbocharger setup, ARP head studs, AFE stainless ...

Today's diesel truck war between the Big Three is reminiscent of the muscle car era. Each company is doing everything it can to build a more powerful truck. As the trucks become more and more powerful ...