is that work or not?
Tuning & Design für Ihren Mercedes-Benz, Jaguar und Cabrio-Center
or it's not good like normal "tune" is a plug and play module ?
or it's not good like normal "tune" is a plug and play module ?
The plug & plays are known to be ineffective at best and actually harmful at worst. The Piecha unit looks like additional wiring is required in addition to permanently plugging into the OBD port. The VAP tune only requires a 5 minute flash: very easy.







