Harness Bar Mount for Mini Cooper Applications. Harness Bar for the Mini Cooper and Cooper S (2002-06) makes extensive use of water-jet machined sections and unique geometry, making it the strongest and lightest harness bar of this configuration. It is the only harness mount currently available for the Mini Cooper. The R-1305 is a bolt-in part that requires no drilling, cutting or fabrication. It can be easily removed to allow use of the rear seat area for daily driving.