they are brembos with ECS hats. i had a set of the front and rears and decided minimum of 18 inch wheel wasnt for me, so i sold them before use, but ive driven a mk4 with a set and they were awesome… no difference between these and the stop tech kits that are out. they are oem porsche calipers.
the rotors ECS sells for oem replacement have sucked lately. thats why you gotta buy the brembo blanks or zimmermanns