APR Turbo Inlet System | MK8 GTI · R · Arteon [GEN 4] · 8Y A3 · S3

The APR Turbo Inlet System is a comprehensive upgrade to your factory or modified intake system. To maximize performance addressing the restrictive components between the airbox and turbocharger are a top priority. It's common to individually upgrade these components, but doing so is not ideal as it mean sacrificing overall design for the sake of compatibility. This is why the APR system is one complete upgrade from the turbocharger to the intake airbox. We were able to increase the diameter as large as possible with the best geometry from the turbo to the intake airbox to promote the maximum amount of flow with the lowest pressure drop. The system starts at 80mm and can expand up to 88mm for larger airbox systems. For any given size inlet there is a theoretical maximum flow limit, but in real world testing the actual results are typically around 90%. On the GTI we set out to achieve this limit and hit 90% of the ideal maximum with the APR turbo inlet! This means the turbo doesn't have