Rebel RSR Steering Rack Limiter and Anti Tire Rub Kit
 
Fits 911, 930, 912, 914

These machined aluminum collars clamp around each end of the steering rack providing an adjustable range of steering motion and eliminating any tire rubbing problems.  Easily installed and adjustable, you do not need to remove the tie rods for installation.  These are a must have item for cars with wider tires and/or lower ride height.