Because of the bad original brakes I equipped my M5 with Porsche 993 Biturbo brakes. To get more cooling air to this brakes I want to make an air inlet beside the foglamps through to the wheels. Has anyone experience with this?
I decided to do this after my first brakes were completely dead after 24000km and the second ones nearly dead after 6000km. Because I want to use my winter tyres on 17" wheels also, I wasn't able to fit the Porsche GT2 brake disk with the GT3 brake. This must be the really speed killer! But anyway, I equipped it with the Porsche 993 Biturbo brakes on front and rear wheels. Since than absolut no fading and it feels much stronger. The complete exchange with everything including original Porsche spares cost me 6000 USD.