I have the old 2005 and before style bumper on aa S-Line TDI 55 plate. The spoiler I have the chance of is meant to be an 03/04 split bumper style, part No. 8P0 071 609 9AX, I am not sure if this is the correct one and how much difference there is in he bumpers. If it is wrong, does anyone have the correct part number? Thanks.