The Ideal suspension for your E46 M3 BMW. Ground Control Suspension systems Koni Dampers, the best camber plates in the business, race proven Eibach springs, optional weight jack rear height adjusters, why wouldn't you want one of these kits?
Nylon Spring Alignment Cone (PAIR)
BMW E46 Weight Jack (Pair)
E46 Complete Coilover Suspension System
E46 M3 Bread & Butter Kit