ok, so someone at work got me thinking. Would it be feasible to retrofit ASR to a facelift B5? I'm not talking full ESP, just basic traction control. could it be as simple as swapping the ABS modulator to one that supports ASR, such as an S/RS4 B5 or a B6. Looks as though the Bosch 5.3 unit 8E0614111G or 8E0614111AJ can be re-coded to be Non CANbus, So could be a winner... http://wiki.ross-tech.com/wiki/index.php/Audi_A4_(8D)_Brake_Electronics_(Bosch_5.3_ABS/EDS/ASR) Anyone done this before?