this sound like MMC 2nd version for me leh....Got air flow sensor, can customize throttle body and change coil pulak..
coz siemens vdo dun have air flow sensor..only have Intake Air Temperature (IAT) Sensor with Manifold Absolute Pressure (MAP) Sensor ....if customize throttle body....you need to redo and the Throttle Position Sensor (TPS)...which you saw alot electronic and mechanism thing in the throttle body...unlike MMC throttle body...does not have any eletrical thing inside the body such as capacitor, ressitor and so on... you will found in siemens TB..
sorry what i mean is IAT like you said...we dont change throttle body but lot of bigger throttle body can fit at siemens 4G13/5 and 4G93 R3