BMW 5 Series (including M5) (F10, 2010–2017). The F10, including the twin-turbo V8 M5. JRZ’s handbuilt dampers for the F10 come in multiple levels of adjustment, up to 3-way double-adjustable, and are custom-valved to your car and your goals. As the official U.S. JRZ distributor, we help you spec the right kit and valving, with expert setup support and fast shipping.