Bilstein B16 (PSS10) Subaru WRX STi Base/Limited H4 2.5L Front & Rear Performance Suspension Systemp class="p1">Bilstein 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. 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