2 x 12 mm reo bolts in each chassis rail you'll neeed a long extension with ratchet.
2x 10 or 12 mm bolts in wheel arch (1 left 1 right)
and the 10mm bolts holding the grill part of bumper reo to your rad support.
when pulling off bumper do not pull bumper off all the way pull it out enough to get in and disconnect your intercooler water spray lines first,
then disconnect your driving light looms from spotties, then once thats all done you can remove bumper bar.