They are both 345x30, but the q5 rotors on ECS are cheaper. Are they the same rotors essentially? Offset the same? Cross compatible?

S4 rotors
https://www.ecstuning.com/Audi-B6_S4.../Rotors/Front/

Q5 3.0 rotors
https://www.ecstuning.com/Audi-Q5-Qu...raking/Rotors/