yea that happened to me the other day, i was waiting all day for a package to arrive. i ordered my brembos and pads and when the package came there was only 1 front and 1 rear rotor and both sets of pads. yea, i was pissed
h: i called the company up today and they sent out the other 2 rotors and they should be arriving at my door sometime by the end of next week
