The APR Open PEX Intake System is the best dollar-per-horsepower intake system for the 1.8T/2.0T Engine! APR has maximized performance and sound dramatically by reducing pressure drop and increasing airflow. This translates to more horsepower and torque, and less physical strain on the turbocharger. The system looks great, sounds amazing, and produces more horsepower and torque you can feel. The Open PEX Intake System does away with the closed airbox design and uses a massive 7" washable and reusable cotton filter with a frontal inlet and 4" rear outlet. This was necessary to limit pressure drop across the factory system and maximize airflow, while allowing you to fully hear the engine breathe! The massive filter provides excellent filtration. By oversizing the filter, APR is able to limit pressure drop without sacrificing filtration. This is made possible through the use of greatly increased filter surface area. The PEX material give the intake a stock feel and it allows APR to make a complex and organic heat shield shape that keeps hot air pushed through the frontal radiator away from the intake tract. Lastly, PEX retains heat less than other materials, such as metal, making it ideal for performance. Note: Models with Secondary Air Injection (SAI) require a breather filter (CI100020-A). This intake is not designed to fit EA888 Gen 3B engines that feature a MAF sensor on the intake tube. This system is not compatible with the MS100100 intake mounted Catch Can System.