I've been trying to buy a brake upgrade package for my 2WD A4. So far all I've had is very long lead times (i.e 4months) or failure to return my calls. I've decided to give up on the kit idea and look for compatable OE bits as opposed to hard to get race parts. So the question is, what Porsche based upgrades should I be looking for? The car is running 18" rims and I'd like the disks to be about 350x32mm ish. The question stands for the rear brakes as well as the rear discs are tiny. Thanks in advance. Paul.