This is the best adapter kit available on the market. This kit centers the new rotors to original stock location, unlike other kits which move the caliper out with a flimsy bracket. Improve your braking and fill in the gap of the small stock brake kit. This upgrade lets you use 370Z G37 Akebono calipers on your 350Z & G35. Larger brake rotors. The larger diameter moves the caliper further from the center of the hub, which gives the caliper more leverage thus increasing brake torque (with the same pedal pressure and pad friction). The larger rotors also have more thermal mass, which reduces brake fade. The big brake rotor upgrade is a very cost effective upgrade that provides real improvements to braking. .