First, is your MK4 a 1.8t/vr6 or a 2.0/1.9? Because if it's one of the economy motors, there's a lot involved in getting big front brakes.
But if you have one of the two more sportier models then:
http://www.ecstuning.com/Volkswagen-...g/ECS_Stage_2/
If you want the backs to look decent, get some matching caliper paint.




