The system currently on the Z4 is available in the overseas market AND on the E46 M3. Retrofit is possible for ANYTHING...You can even retrofit an additional 100 hp on a 330i by swapping the motor out for an M3 motor. :dunno:TimC said:Does anyone have any experience with a Tire Pressure Monitoring system, like Smartire?
Also, has anyone seen the TPMS on the Z4? Could this be retrofit to the current 3-series?