I have been considering upgrading from the revised brakes on my 1990 V8 (dealer changed from the rings ro 200qt setup). Does anyone have any experience obtaining larger diameter Discs, and 4 Pot Calipers? Does anyone know the details on the S4/S6 4.2 brake setup? Will the Porsche/Brembo RS-2 Calipers work as a swap with the 2 Pot on the 200 TQ's? Thanks!