Integrated Engineering Hybrid Turbo Inlet Adapter RingsEASY TTE720 INSTALL The TTE720 hybrid turbochargers are popular for adding serious power to your Audi B9 B9. 5 RS5 2. 9TT engine. When upgrading to this turbo, you must address the larger inlet size of the new compressor housing to your existing turbo inlet pipe. These billet o ring sealed flanges seamlessly adapt your iE Turbo Inlet Pipe directly to the TTE720 inlets. This simple solution makes your hybrid turbo installation a direct bolt in job.