Brey Krause R-1031 Harness Bar Adapter Kit - Porsche 996 GT2 And GT3The Brey Krause Model R 1031 Adapter Kit allows the Brey Krause R 1030 and R 1035 Harness Bar Truss (for Porsche 996 Coupes) to be installed in Porsche 996 GT2 and GT3's. Simple bolt on adapter requires no modifications to the car or mount bar. The adapter kit replaces the forward support tubes included in the original kit, because these cars lack the rear seat belt mounting points.