The Bilstein B12 2006 BMW Z4 M Coupe Front and Rear Suspension Kit is a complete suspension upgrade solution designed to improve the handling and ride quality of your 2006 BMW Z4 M Coupe. This kit includes two Bilstein B12 Sport Shocks and Struts for the front and rear of the vehicle, along with two Eibach Pro-Kit Lowering Springs for the front and rear. The Bilstein B12 Sport Shocks and Struts are designed to provide superior damping and control, while the Eibach Pro-Kit Lowering Springs help reduce body roll and improve cornering precision. This kit is the perfect solution for those looking to upgrade the suspension on their 2006 BMW Z4 M Coupe.