Both pots on the same side, think an R32 setup but with two smaller pistons....
Good pic is this one, its a 1/2 way house between 4 pots and Cast Iron calipers, the discs are actually very lightweight for what they are, they have an alloy centre bell.
Heavy setup though and good for a 2.7 Biturbo RS4 whichwas 370BHP as standard for those who tuned their cars (500BHP) you could buy the motorsport pack which was these drilled discs and audi competition pads which were very poorly disguised Pagid RS19 Yellows.
Without soundling like Clarkson..........some say ...you could stop out all day on these babies until you ran out of petrol
They'd be good for ED30 owners looking for something that fits between the R32 setup and the £1500 kits