G day, i've just got a "RIEGER" RS4 front bumper for my s4 , it does look very like the oe 1 . The main diff is the size of the cooling holes in the front , this one has much larger holes as i found that the oe grill sections will not fit as they are too small !!
will post when it's fitted . take a look @ www.tuning.co.uk/rieger/
grizz