911 Carrera 4 (996)/911 Carrera 4S (996)
PSM (Porsche Stability Management) is installed as standard in the 911 Carrera 4 (996) and 911 Carrera 4S (996).
PSM variants: production launch with PSM 5.3 (control module separate) and as of model year 2000 (Y-range) PSM 5.7 (control module fitted).