I have a set of pistons out of an ej257 2011 sti block. The pistons were never used and pulled out of a brand new block and replaced with cp pistons. All pistons are A bore size and they will all come with piston rings and wrist pins all ready to drop right in. These are also direct replacement pistons for the ej255 motor. Asking $120 shipped for all 4. Thats less than the price of just new piston rings from subaru.