Eibach has developed a new Pro Street S coilover system for the BMW E46 M3! The Pro Street S was designed to focus on the chassis balance of the car which they were careful not to disrupt. They are height adjustable coilovers which can lower the car well beyond what the Pro-Kit springs can do and still maintain the weight distribution by corner weighting. The guys at Eibach tested these coilovers and ran some impressive lap times at Buttonwillow. Equipped with only street tires, the Pro Street S coilovers and their Anti Roll kit, they managed to put down a 2:04:42.