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 ...

General Motors brought out a new version of the 6.6L Duramax V-8 engine, known as the LML, for the 2011 model year. Among various other changes, the company replaced the previous Duramax’s CP3 ...