2. Our Strange S60 rearend was delivered with optional Wilwood DynaPro 11-inch discs to match our front Dynalite discs (Strange kit PN B2709WC, $599). These are not in the Strange catalog yet, so tell them PHR sent you. Performance on these four-piston calipers and 11-inch rotors is nearly identical, and well matched to our needs. Note the integral parking brake drum in the rotor hat.