Hey glad you like your Focus!! I am not quite sure how different the 2014s and 2015s are but I currently have 245/40 R18s with a 42mm offset (rim size is 18x8) on mine and it is lowered to where they tuck just a little bit. I had my coilovers set to the lowest setting (which is lower than the Eibach will go) and they scrubbed when I made a hard turn fast. Raised them back up about a half inch or so and even over rough roads they don't scrub. What is the width and offset of the rims?