Hi all, I am new to this forum but have been surfing for information on this forum. It is a great way to get valuable information regarding the bmw X3. Not sure if this helps but I have found a that a company in Hong Kong has managed to install the F series M sport brakes on a F25 series for the front. From the pictures there seems to be no additional brackets. Just the M sport calipers, brake pads and the brake disc. Looks to be the 370mm version. Do see the link for the pictures.
https://www.facebook.com/Zillion.Per...type=3&theater