I`m doing engine rebuild for F20C2 and i`d like to get JDM spec pistons to it, so which one of these pistons is the oversize piston for F20C (with 11.7:1 comp)


13030-PCX-506
PISTON SET (OS 0.25)


13030-PCX-A01
PISTON SET (OVER SIZE) (0.25)
Replaced by: 13030-PCX-506