This is the perfect kit if you want more brake. It will work on the right rear or left rear. Put on right rear to loosen car up under braking and make it turn better. Add to left rear if you need more brake without effecting the handling as much. On the left rear, it will help to hold car down on the left rear under braking. Kit is complete with 1.4lb stainless rotor which floats to reduce drag, GP320 Caliper, Splined Rotor Adapter, Floating Tabs, Bolt Kit, Bracket, and Pads.