Rubber bushings are the weak links in your Porsche® suspension. Poly-Graphite plastic provide the very best suspension bushings for your Porsche®. Weltmeister® adds special hardeners and lubricants, formulated to give your suspension bearing like action. The result is bushings that have constantly been in the winners circle at IMSA, SCCA, PCA and POC races. The structural memory characteristics and resistance to cold-flow are superior to Teflon® or Delrin, and Weltmeister® bushings will not swell or deform in moist conditions.