2006-2008 BMW Z4 Front & Rear Brake Calipers. These are the calipers that were available on the 3.0si models. For sizing reference these came with 325mm rotors in the front, and 294mm rotors in the rear. These are bigger than the 2.5i models and 3.0i models. These will fit 2006-2008 E85 E86 BMW Z4 3.0si models only, will not fit the 3.0i, 2.5i, or the M models without modifications. In good working condition, fully tested prior to removal from the vehicle that had 88k miles on the odometer. The calipers showed no signs of the leaking when in the vehicle. All 4 calipers have some heavier discoloration and surface rusting, as shown in the photos. Does not include rotors. You will need to reuse some of your existing hardware for installation.