dont use Apex springs if u want to improve your handling. Apex is simply a lowering spring. that guy who said that his handling improved drastically does't have a clue. The spring lowered my ride about 2 inches and ride almost factory,....which is exactly what i was after in spring. I didnt want to turn my Bimmer into a piece of shit that knocked teeth out when hitting a dime on the road. Trust me,....if u just want to drop your car and not sacrifice ride quality use apex... This is my second bimmer with the application.