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, ...

The intake manifold distributes air or air/fuel mixtures to the individual cylinders under varying engine speeds, loads, and environmental conditions. Whether the working flow is pure air, air/fuel, ...

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 ...

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.

Diesel engines require on heated and compressed air to run efficiently. Glow plugs and intake heaters help make that happen, but how do they work?

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 ...

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 ...

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 ...

The ubiquitous Chrysler 4.0L inline-six was (and is) perhaps one of the best engines ever offered in a 4x4. Depending on chassis and model year, these engines carried a net power rating of 173-195hp ...