I just lowered mine using the MRT Street Suspension Kit. I love the way the car looks now and the ride is great. As I am over 40, I can't handle a harsh ride and this setup does the trick. It also advertises that you do not need caster camber plates. When I took mine in for an allignment I found out it does need the plates to get the allignment to proper specs (-0.6) for a lowered Mustang. Each car is different. Even though the original strut mount holes were drilled on a jig they could still be off a few thousands of an inch. Unless you want to ruine your tires, figure in the cost of C/C plates when you get springs and struts.