The Calipers are the same, the pads are the same, and E1 rotors and caliper mounting brackets are the same.
The difference is on regular Contours. They too have the same calipers and pads, but the mounting brackets and rotors are smaller.
The E0 calipers, pads, rotors, and brackets are different from any of the others, and are slightly better due to larger pad area contacting the rotors.