Pair of brackets to convert your IS300/Altezza to dual Nissan Z32 twin turbo rear calipers. For use with the stock IS300/Altezza rear rotors. Allows the use of a dual caliper independent hydraulic handbrake system. Retains OEM drum parking brake. Perfect for use with our all-new reproduction 2 piston Z32 rear calipers, sold separately. CNC billet aluminum adapter with gold anodizing and laser logo. Hardware is included. ** Install Notes – Trimming is required on the OEM dust shield. Grinding is required on the knuckle mount until its flattened, using the shape of our aluminum bracket as your guide. This gives clearance for the center of the lower caliper as shown in the red PDF install doc link.