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Chevrolet/GMC 6.6L L5P Duramax Performance Intercooler, 2017-2019

  1. Performance Review - Performance Intercooler Kit R&D, Part 2 - Production Sample

    Performance Review - Performance Intercooler Kit R&D, Part 2 - Production Sample

    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

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  2. Performance Review - Performance Intercooler R&D, Part 1 - Stock Review and Prototyping

    Performance Review - Performance Intercooler R&D, Part 1 - Stock Review and Prototyping

    Performance is in the eye of the beholder. When the term 'performance vehicle' is uttered, thoughts primarily drift to low-slung, no-frills sports cars. Creature comforts were all sacrificed to the gods of speed, and practicality wasn't even considered. However, every vehicle performs in its own regard, including the 6.6L L5P Duramax powered Silverado and Sierras. These are performance machines. Sure, a Porsche 911 GT3 can lay down staggering lap times, but when was the last time you saw a 911 setting speed records while also towing a trailer and hauling the support team in absolute comfort. Its performance that's usable every single day. While impressive straight from the factory, these L5P power factories could still benefit from a bump in performance, specifically in the intercooling department.

    Before we can even think about our new design, we need to look at what GM included from the factory. A thorough examination of the stock layout gives us cues and a clear path forward on our

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