The 'Startline' bumper/grille is all one piece, correct. The upgrade kits are available and to my knowledge, you shouldn't be missing anything but let someone who has upgraded confirm. I have stayed with the Startline bumper as it suited the look I was aiming forJust bought mine, 67 plate, will post pics soon, mines got the commercial bumpers defo need to upgrade to coloured coded, my bumper looks like the grill and bumper is one piece? I've seen grills, bumpers and bumper inserts on the usual websites, will I be missing any fixings does anyone know? Like grill to bumper for Instance as mine is a one piece?