That looks very much like an S4 front bumper. If it is one piece then it definitely is an S4 front bumper.
The RH - foglight surround is 8E0807681B
The LH - foglight surround is 8E0807682B
The Centre Grill is - 8E0807647 (there will be a letter at the end depending on the colour)
ok arfter doing some traying on us ebay ive found the fog light grills. 1 is $38 and the there is $48. i mat have located a seller that may be selling both sides for $73. just messaged him so will know more shortlly.