Thank you. You have rated this product.
These are Goodwin Racing spec rotors, as included in our 12.88" BBK. Premium quality iron, curved internal vane design, heat treated for longevity under hard use, with slotted face.
Yes, these friction rings fit both our GWR 12.88" BBK, and they also fit the Wilwood brand 12.88" BBK for a higher quality (and lower cost) alternative to Wilwood's rotors.