AST 5100 1-Way Coilovers 2011 BMW 1 M Coupe/2008-13 M3 (ACU-B1603S)

 Free ground shipping.   Fits 2008-13 M3 coupe, sedan, and convertible.    This is a special order kit. Delivery time can be 2-4 weeks.    See fitment guide below for all applications.     Using your car on the track or want to get the best handling and response for comfortable daily use?   Or is it a combination of both you are looking for?   Then the 5100 series coilover kit by AST is a perfect choice.   Brief description on the AST lineup. Choose the right kit for you.    Features and Benefits:   1-way adjustable, the 12 positions give clear feedback with each adjustment, each offering a different driving experience.   Inverted strut design to cope with (heavy) side load and braking loads.   In some cases a non inverted damping system is used.   Improved handling and consistent performance due to monotube shock technology.   Ride height adjustable. 30-65mm lowering range on most applications. (1.2-2.6 inches)   Gas pressurized dampers (gas and oil are divided by a floating piston)