/Convertible The Koni 1145 Sport Kit 08-13 BMW 128i/135i Coupe/Convertible is a complete suspension upgrade for your BMW. This kit includes two Koni Sport struts, two Koni Sport shocks, four Koni Sport springs, and two adjustable sway bars. The Koni Sport struts and shocks provide improved handling and comfort for your BMW, while the Koni Sport springs and adjustable sway bars increase cornering and stability. This kit is designed to reduce body roll and improve overall handling performance. Installation is easy and all necessary hardware is included.