First off, forget OEM pads, go to EBC there's plenty here on those, only available from the USA though.
I had both sets of discs at one time, it's a noticeable difference in "spider / tophat" height and it occurred to me that there surely must be some simple way to make the more common TTRS item fit the RS3 perhaps by a shim?
As mentioned the offset is different, the TTRS is shallower or when the disc is flat the hub landing is lower than the RS3 part, so that brings the disc further OUT from the hub and conversely the (Standard) wheel IN, closer towards the brake mechanism - I think.
So if you got and fitted the TTRS part I would think you'd have to fit different offset wheels to suit??
Perhaps one of the technical bods here can offer a solution? After all, what else were you thinking about doing this weekend?
