This month, we'll step out of the "theoretical box" and into one that's a bit more practical by discussing and focusing on some fundamental ways of relating inlet and exhaust path sizing to an ...

Carbon fiber parts for performance cars like the Audi RS6 and the BMW M6 are easy to order from the manufacturer catalog. However, I can never hope to earn enough money to buy and own a twin-turbo V8.

While your check engine light is obviously meant for engine issues, it can often give you clues to problems in other parts of ...

If you plan to upgrade your car on a budget, most car enthusiasts often start with the engine's air intake system and a performance exhaust. Add-ons like a cold air intake or a straight pipe will let ...

Upgrading your VW or Audi’s intake can unlock performance, but it’s not always straightforward. Poor airflow readings, leaks, or heat soak can follow a mismatched setup. With the right installation, ...

Positive Crankcase Ventilation—three dirty words, but do they really need to be perceived that way? In general, the PCV system has two main functions: vapor relief and liquid separation. PCV systems ...

Specifically, an internal-combustion engine is a heat engine in that it converts energy from the heat of burning gasoline into mechanical work, or torque. That torque is applied to the wheels to make ...

There's no disputing that a decent shaker hood is a stylish item that helps a performance car stand out, but it's more than that. A shaker hood also provides a minor performance gain over a stock ...

GMC is offering a new engine breathing upgrade for the 2025 GMC Sierra 1500, opening up the 6.2L V8 with a Performance Air Intake System. The new factory-installed performance option is tagged with ...