GIAC software is now available for S55 (turbocharged 3.0L inline-6 cylinder) engines found in BMW M3 and M4 models.
GIAC software is now available for S55 (turbocharged 3.0L inline-6 cylinder) engines found in BMW M3 and M4 models. This software calibration accommodates 91-93 octane fuel, as well as the ... CONTINUED
8 years ago