IPD 957 Cayenne Turbo S 4.8L Plenum (2009 Only)
IPD 957 Cayenne Turbo 4.8L Plenum ('07-'10)
IPD 955 Cayenne Turbo 4.5L Plenum ('03-'06)
IPD 981 Boxster Non-S 2.7L Competition 82mm Plenum ('13-'16)
IPD 981 Boxster S/GTS 3.4L Competition 82mm Plenum ('13-'16)
IPD 987.2 Boxster Non-S 2.9L 74mm Plenum ('09-'12)
IPD 987.2 Boxster S 3.4L 74mm Plenum ('09-'12)
IPD 987.2 Boxster Non-S/S 2.9/3.4L Competition 82mm Plenum ('09-'12)
IPD 987.1 Boxster 2.7L 74mm Plenum ('07-'08)
IPD 987.1 Boxster S 2.7/3.2L 74mm Plenum ('05-'06)
IPD 987.1 Boxster S 3.4L 74mm Plenum ('07-'08)
IPD 987.1 Boxster 2.7/3.4L Competition 82mm Plenum ('07-'08)
IPD 986 Boxster Non-S 2.7L Competition 74mm Plenum ('00-'04)
IPD 986 Boxster S 3.2L Competition 74mm Plenum ('00-'04)
IPD 981 Cayman Non-S 2.7L Competition 82mm Plenum ('13-'16)
IPD 981 Cayman GT4 3.8L Competition 82mm Plenum ('13-'16)
IPD 987.2 Cayman Non-S 2.9L 74mm Plenum ('09-'12)
IPD 987.2 Cayman Non-S/S 2.9L/3.4L 82mm Competition Plenum ('09-'12)
IPD 987.1 Cayman 2.7L 74mm Plenum ('06-'08)
IPD 987.1 Cayman S 3.4L 74mm Plenum ('06-'08)
IPD 987.1 Cayman 2.7/3.4L Competition 82mm Plenum ('06-'08)
IPD 992.1 Carrera Non-S/S/GTS 3.0L 74mm Plenum ('20-Current)
IPD 991.2 Carrera Non-S/S/GTS 3.0L 74mm Plenum ('17-'19)
IPD 991.1 Carrera S 3.8L 82mm Plenum ('13-'16)
