Use this K&N intake system when you're looking to enhance your car's performance. It's perfect for car enthusiasts who want to boost their vehicle's power without a long - term commitment, as it's easy to install and remove. The intake tube is mandrel - bent aluminum, and the filter is an oversized conical design. It's suitable for various models of Audi and Volkswagen cars from 2006 - 2008, such as the Audi A3 and Volkswagen Jetta GLI.