These replacement AP Racing brake discs are specifically designed and sized for the AP racing 1 piece big brake kit at 304mm x 24mm, therefore they will not fit the standard mini caliper or any other brake kit. The discs are available in either drilled or slotted designs, both of which will aid dispersion of gas and brake dust. Please note that the original kit is supplied with the drilled version, which is pictured here. Priced individually please purchase 2 for a set.