Supertech forged piston set for Mazdaspeed 2.3L engines uses an 87.5mm bore with a -14cc dish and 9.5:1 compression ratio, supplied as a set of four pistons (rings excluded). These pistons are specified for the Mazdaspeed 2.3L platform and intended as direct replacement components for engine builds that require the stated bore and dish volume.
Supertech Mazdaspeed 2.3L 87.5mm Bore -14cc Dish 9.5:1 CR Pistons - Set of 4 (Excl Rings)