Bilstein B14 - PSS Kit The Bilstein B14 PSS Suspension allows adjustable vehicle ride height without the expense of a fully adjustable damping system. This system features both coilover and standard mono-tube gas pressure shock or struts with performance level valving for application specific, progressive rate coil springs. The product benefits at a glance: Threaded body adjustable range of 20 mm Lowering of approx. 30-50 mm at front and rear Road-tested and fine-tuned by Bilstein ride engineers, under extreme motorsports conditions Aluminum Spring plates and lock nuts Surface coating using Triple-C-Technology(R) for long-lasting corrosion resistance Round threads for easy adjustment Quality sport springs made from highly durable material Gas pressure technology Bilstein monotube technology, made in Germany Download the product PDF Download the application guide PDF Monotube Technology - the Number-One Choice in Motorsports The original and best mono-tube gas pressure shock absorbers all wear the Bilstein name, because Bilstein shock absorbers are the best there is. The number-one choice in motor-sports and for series-production sports cars, the monotube shock absorber has a unique design that affords the freedom to choose the ideal installation position or location. Monotube shocks feature a large surface on the working piston which increases the damping power and provides better handling. The design of the monotube shock improves the dissipation of heat which improves the life of the shock and enables a consistent and dependable level of absorber performance. Bilstein's Upside-Down Technology creates a safer functioning shock absorber. Gas Pressure Technology - Full Damping Power Under Extreme Stress Bilstein's gas pressure technology has become an established standard in the automotive industry. By employing a chamber of high pressure gas to keep the oil in the 2 Year / 200,000 mile warranty.