Diesel enthusiasts looking to upgrade the turbocharger on their 2017 through 2019 Duramax turbo-diesel L5P V8 engine can now turn to Wehrli Custom Fabrication for its latest single turbo upgrade kit.

As we all know, sometimes things just don’t pan out as expected. As we covered in the first report of this two-part series (“Pumped Up,” May 2019), replacing the truck’s stock Bosch CP4.2 ...