ECU Flash
Reflash your MED17.7.3 directly over OBD. Stock backup included.
What STERN does
CPC Tuning
Full powertrain controller access. Torque limits, exhaust flaps, launch RPM.
Live Datalogging
50+ channels. Boost, knock, IAT, cylinder timing — real-time CSV.
Map Switching
Swap between 91 oct, 93 oct, and track maps in under 60 seconds.
Burble Control
Exhaust pops on demand. Fine-tune aggression, threshold, and RPM range.
Wireless
WiFi OBD adapter. iPhone and Android. No laptop required.