Worked like new once installed. Only my driver's side failed, but at the same time replaced my drivers. My ABS and traction control lights went on and off randomly. Fixed after installation. Not sure how long they will last. Stock driven up to 137,000 km. If you want to know how to install them, watch the YouTube video. Very easy to install. Just twist and pull. Be careful not to break them when you pull them. Thermal cycling will cause them to crack when pulled.