What size wheels & tires do you have? Are they oversized? For example, I lowered my car with H&R Sport springs & went with a 17" x 8" wheel & a 225/45R17 tire. It just clears it in the back.....So, if I had went with a larger wheel, it would definitley be hitting.......Also if I had chose the race spring, it would be hitting.....what type of springs do you have? Are they adjustable coilovers?