The Bilstein B16 PSS-9 suspension kit is possibly the most highly-acclaimed aftermarket suspension available for your Porsche. The threaded strut body allows 20mm of adjustment, so you can dial in your desired ride height from approximately 30mm to 50mm lower than stock. 9 levels of compression and rebound settings are available at the twist of a dial, allowing you to set up your suspension precisely for your needs. Spring plates and lock nuts are made from a special aluminum alloy, and strut bodies are coated for long-lasting corrosion resistance.