I have a 2015 3 s touring sedan, with the 2.5l Skyactive. I order Eibach springs, kit 5557.140 from Tire Rack. Unfortunately the diameter of the top on the rear springs is larger than the rubber mounts. Tire Rack is hassling me over returning them and I would like to know if I am missing something or if there larger diameter mounts I can buy for the car to accept these springs. I am not new to the car world, however this is my first Mazda and this is making me feel like a complete noob. Any insight would greatly appreciated. Thanks.