Bilstein B6 (DampTronic) 2015 BMW M3/M4 Front Left Monotube Strut Assembly Carbon Fiber 6 or 8 pistons

6 or 8 pistons

H&R Coil-Overs feature a fully-threaded shock body (not an imitation sleeve-over) that allows you to precisely dial in height adjustment to achieve optimum weight transfer

* 100% positive molded for uniform friction material density

The exhaust system is made of our proprietary titanium and consists of dual-outlet mufflers with exhaust valves

Bilstein B6 (DampTronic) 2015 BMW M3/M4 Front Left Monotube Strut Assembly Carbon Fiber 6 or 8 pistonsBilstein B6 Heavy Duty monotube gas pressure shocks and struts are the ideal choice for most vehicles, including full size sedans, SUVs and trucks. These shocks provide improved handling and stability, without sacrificing ride comfort. They offer super damping ability that makes them ideal for the driver who demands superior performance, while maintaining an exceptional street ride. *The product benefits at a glance:* * Monotube gas pressure