Mike Charlton may only be 23 years old, but he eats, breathes, and sleeps diesels. When he is not treating acid-mine drainage water at his family’s business—AMD Industries Inc.—he is working at ...

As much as we might like the sound and the fury of a big, open exhaust on our diesel engines, does it necessarily flow better than a high-performance aftermarket system? Sure, a big, bad diesel rumble ...