I BOUGHT THESE WITH THE INTENTION OF THROWING THEM ON MY S4 BUT UNFORTUNATELY I TOTALED IT AND NOW IM JUST TRYING TO GET SOME OF MY MONEY BACK AND OFCOURSE YOU WILL NEED BRACKETS TO MOUNT THEM ON!! THEY ARE FRONT AND REAR RED 4-PISTON OEM PORSCHE CALIPERS WITH PLENTY PAD LIFE LEFT AND IN VERY GOOD CONDITION THEY CAME OUT OF AN 07 CAYMAN S...........IM ONLY ASKING $600 OR B/O MY NAME'S JOE I CAN BE REACHED AT 908-906-0987 THANX!!