Holset Super HX35 with internal wastegate Model: Holset Hx35-12 with built-in wastegate Compressor: 57mm Turbine: 70/60mm Exhaust: No. 12 with built-in Wastegate Flange: T3 Twin entry Flange downpipe: 79mm (V-Band flange) Oil pressure: M12 banjo Oil return: CC measurement Approx. 51mm Water cooled: No Size of connection inlet: 102mm (4") - If you want below 1.6 bar basic charge pressure, choose the linked wastegate which can be adjusted between ~0.7-1.6 bar. Please note that it is a universal wastegate and some modification may be required.