not sure if the oem servo will be capable of handling the rs4 fronts aswell as the s3 rears, but i am not that clued up about its limits. i dont want great stopping power but the car not being able to handle it
 
not sure if the oem servo will be capable of handling the rs4 fronts aswell as the s3 rears, but i am not that clued up about its limits. i dont want great stopping power but the car not being able to handle it

have heard about that before, This is the mainreason for people to stear clear of the ECS BBK's as the pistons are massive. speak to DaveB on the gti forum. he'd definately be able to helo you out