Couple of questions regarding the replacement of my front coil springs. Audi want 78.81 each for a coil spring, the same price as a set of aftermarket lowering springs. If I go for lowering springs, what brands are recommended? H&R, Eibach, Wietec, KW or AP? A pair from GSF or ECP? If lowering springs are fitted, would wheel alignment be required? How is the ride and handling affected? how many hours labour to fit a set of lowering springs?