When it comes to trucks like the L5P Duramax powered Silverado and Sierra, 'tough' is generally the adjective used to describe them. Often, we see these trucks portrayed as do-anything utilitarian machines. They're traversing a dusty job site or towing a trailer loaded with machinery up a hill without breaking a sweat. The bed takes a pounding from payloads or toolboxes being dropped in without a care. Regardless of how or where you use your L5P Duramax, the mind-boggling performance these trucks possess is overshadowed by how "robust" they are. The massive torque figures and surprising 0-60 times are not lost on us here at Mishimoto. We're here to celebrate the speed of the Duramax and even improve on it.
The L5P Silverado and Sierra HD are the latest in a long line of GM turbodiesel torque machines. However, the intercooling system could still use an upgrade, specifically the piping. Before we could fully update the intercooler piping system in the Duramax, we needed to perform a