B Bigbadcol Member Jul 10, 2013 #1 Not mine but saw them on E-Bay. Always seem rare so thought it was worth a heads up. http://www.ebay.co.uk/itm/bmw-z4-dsp-amplifier-subwoofer-kit-from-2003-very-very-rare-to-get-/321160623196?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item4ac6aa345c
Not mine but saw them on E-Bay. Always seem rare so thought it was worth a heads up. http://www.ebay.co.uk/itm/bmw-z4-dsp-amplifier-subwoofer-kit-from-2003-very-very-rare-to-get-/321160623196?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item4ac6aa345c
