Integrated Engineering Pure750 Turbo Adaptor Ring for Cast Turbo Inlet PipeThe Pure750 hybrid turbo from Pure Turbos is a popular and fantastic choice for adding big power to your Audi B9 B9. 5 S4, S5, or SQ5 3. 0T engine. When upgrading to this turbo, you must address the larger inlet size and the mounting depth of the new compressor housing to your turbo inlet pipe. This billet o ring sealed flange adapts your IE Turbo Inlet Pipe directly to the larger than stock Pure750 turbo compressor size. This easy solution makes your