TiAL Air Inlet Tubes for Porsche 991.2 Carrera Base / S / 4S / T / GTSEngineered and assembled by TiAL for the Porsche 991. 2 Carrera S T GTS. Capable of a 50hp increase with the addition of these inlet tubes and TiAL inlet elbow kit, which you can find here: Inlet Elbow Kit If you're looking for a high quality inlet upgrade from a company that has a long history of upgrading Porsches, these are what you need. Complete kit, fresh air tubing to the turbocharger inlets. Designed for optimal air flow. Part of the TiAL