A German master cylinder as a direct replacement for your FAG 15/16" Master. How do you know whether your master is a Girling or an FAG? FAGs are typically found on the later Mk3s. The Girling is fastened directly to your brake booster or servo with 2 bolts. The FAG fastens by two bolts to an adapter plate which fastens by two bolts to your booster/servo. At this price, why rebuild it? When replacing your master, we think it best to recondition the servo at the same time. Does not include grommets, bleeder or elbows.