TurboWorks Blow Off Adapter Made of solid aluminum by CNC method Allows the adaptation of Greddy Mounted Relief Valves to a serial intercooler Fits: Subaru Impreza WRX 02-07 Subaru Impreza STi 2002 - 2012 (Top Mount Intercooler) Dimensions shown on the last Photo in the gallery. Bolt spacing: 105mm TurboWorks Blow Off Adapter. Made of solid aluminum by CNC method. Allows for adaptation of bleed valves with Greddy mount to serial intercooler. Suitable for: Subaru Impreza WRX 02-07 Subaru Impreza STi 2002 - 2012 (Top Mount Intercooler) Dimensions shown in the last photo in the gallery.