Older Porsche (Pre-Electronic / Early Transponder)
- Porsche's first electronic immobilizer family used across the older sports-car lineup
- 911 996 (1998–2004), 911 997 (2005–2010)
- Boxster 986 (1996–2004), Boxster / Cayman 987 (2005–2010)
- Carrera GT (2004–2006) — separate Porsche-specific transponder
- Mechanical key + transponder head on early models, transitioning to remote fobs by mid-2000s
- Porsche-specific tooling required — these don't share with VW Group equipment
911 996 (2001–2004)911 997 (2005–2010)Boxster 986 (2001–2004)Boxster 987 (2005–2010)Cayman 987 (2006–2010)Carrera GT (2004–2006)