928 574 678 02 · Y-piece Porsche genuine (OEM) part number 928 574 678 02, Y-piece. Fitted on (3)Y-PIECE — pos 5 (KAT1003.BIN)Y-PIECE — pos 5 (KAT1006.BIN)Y-PIECE — pos 5 (KAT1011.BIN) Open the interactive exploded diagram →