Hey all I'm a rooke when it comes to Diesels and have a coulple of question what is the difference between a "C" and "J" code engine and which is better? Also I've heard that the 6.5 turbo is a direct bolt on for a 6.2 because the Banks Kit is out of my price range at the moment and will be for a long time. Any help will be greatly apprectiated! 
