Almost nothing can beat compound turbos in performance applications. While a big single can make plenty of power, compounds will spool quicker, tow better, be more driveable, and are capable of ...

This 415HP Audi A6 3.0 BiTDI with a straight pipe exhaust sounds nothing like a regular diesel. In this POV Autobahn run, you ...

One of the more difficult technical aspects of diesel performance is choosing a turbocharger. If you put enough fuel through a diesel engine, it's going to run up against a point where the stock ...