PorscheCar Stock ECUs Porsche Model: ISO9141_2 911 (996 MK1) all models 1997-2001 Bosch Model: Porsche_911(996) 911 (996 MK2) all models 2002-2005 - ISO9141_2 Bosch Model: 997_GT3 911 (997 MK1) Carrera 2004-2008 - ISO9141_2 Bosch Model: ISO9141_2 911 (997 MK1) GT3/GT3 RS 2006-2009 Bosch Model: Porsche_911(996) 911 (996 MK2) all models 2002-2005 - ISO9141_2 Porsche Model: EMS SDI 3.1 Siemens 911 (997 MK2) Carrera 2008-2011 - 997_987_MK2_OBDII Bosch Model: 997_GT3 911 (997 MK2) GT3/GT3 RS3.8/GT3 RS4.0 2010-2011 CAN Porsche Model: EMS SDI 3.1 Siemens 911 (997 MK2) Turbo/GT2/GT2 RS 2010-2012 - 997_987_MK2_OBDII Porsche Model: 991_911 911 (991 MK1) all models 2012-2016 - 991_981_OBDII Porsche Model: 991_911 911 (991 MK2) all models 2017-2018 991_981_OBDII Porsche Model: 992 OBDII (RS3 only) 911 (992 MK1) all models from 2019 Porsche Model: 991_911 911 (992 MK2) all models from 2021 - 992 GT3 OBDII (RS3 only) Porsche Model: ISO9141_2 Boxster (986) 1996-2004 Porsche Model: 997_GT3 Boxster/Cayman (987 MK1) all models 2006-2008 ISO9141_2 Bosch Model: 991_911 911 (992 MK2) all models from 2021 - 992 GT3 OBDII (RS3 only) Bosch Model: 997_GT3 Boxster/Cayman (987 MK2) 2009-2012 - CAN Porsche Model: EMS SDI 3.1 Siemens Boxster S/Cayman S/Cayman R (987 MK2) 2009-2012 - 997_987_MK2_OBDII Porsche Model: 991_911 Boxster/Cayman (981 MK1) all models 2013-2015 - 991_981_OBDII Porsche Model: 991_981_OBDII 718 Boxster/Cayman (982) from 2016