Description Reviews USED MINI Cooper Coil Pack Studs 07-13-7-577-567. This is a lightly used coil pack stud kit that we have striped from a used engine or valve cover. Sold as a set of 4 and will come with a bolt and grommet as shown. This is used some there can be some surface rust, but will work as it should at a fraction of the cost of a new one. We only recommend a stock coil for the gen 1 MC and MCS. These bolts will mount the coil correctly and not crack the valve cover.