I have Prodigywerks CR4 on stock 312mm rotors under Borbet Y 16x7 ET48 with 10mm spacers (so, ET38) and 225-55-16 tires on MK7.5 Golf Alltrack. They've only been on for a couple months. I went through a fairly extensive (aka, nerdy) analysis of creating paper templates based off drawings of calipers and tried them on wheels that I already had. There are pros and cons to the various setups - Prodigywerks, RacingBrake, Ceika, Porsche 986, Wilwood, etc. I'll be able to post more when I fit my winter wheels in a few weeks (and organize my research into something understandable).