After piloting any performance machine, the same question always arises, "How can I squeeze more performance out of this engine?" Whether it's a low-slung sports car, hot-hatch, or diesel powerhouse, the sentiment remains. The L5P 6.6L Duramax powering the 2017-2019 HD Silverados and Sierras are no exception. They're not destined for corner carving, but they perform in their own right. The Duramax holds a payload of power potential, with the intercooler being the key to it all.
In our last post, we installed our prototype to double-check