Piston diameter 12 mm = 11 to 13 mm

Billet spacers for LC8 are available if you need one

Low-profile roost deflector with D3O® armor

it has an octagonal shaped bottom

and will require the drilling of two additional holes into the subframe

All Balls Racing - Brake Caliper Piston Kit (18-9022) Options:(18-9022) Piston diameter 12 mm =Stainless steel reduces thermal conductivity by up to 90% compared to aluminum Reduced braking temperatures provide better braking performance Eliminates the potential for becoming brittle or corroded like composite or chrome plated pistons, thus extending braking performance Eliminates failure prone ceramic inserts used on some models