[upstate650]

I didn't really ask for or get an explanation. I assumed the website wasn't differentiating between regular X5 brakes and the monstrous rotors on the M. Frankly, $1500.00 seemed to good to be true. It would be so much cheaper than stock components, which are pretty damn good to begin with. With the custom machining he does, he would have to be using inferior blanks to bring in an M brake systems for $1500. He quoted me $2300 for all 4 rotors, new pads and stainless steel brake lines - this includes the machining of the rotors in whatever pattern I choose and my choice of color for the hubs and zinc treatment.

Compare this price to OEM components - even ordering them from getBMWparts. This is a no brainer upgrade, especially since I am due for new rear brakes very soon anyway!