Bilstein PSS10 coilovers are available through Vivid Racing at great prices and with a very knowledgeable sales staff. Bilstein PSS10 coilovers replaced the PSS9 and feature 10 way adjustable dampening. For some applications like the Porsche with PASM, they work with the factory system to adapt to the driving conditions. Bilstein PSS10 coilovers are a great coilover to replace your factory struts and springs while giving you a lowered ride height and improved handling. We carry the entire Bilstein product line from struts to full suspension kits. Contact us if you dont see the application you are looking for!