Hi Craig! i once had a faulty XL reconditioned unit which was exchanged no trouble at all.you mention BBA REMAN.I Have bought goods from BBA REMAN myself and have always had good service.Howevever a local garage customer of mine bought a rare faulty distributor from BBA REMAN.BBA were exceptionally good at replacing faulty unit straight away with no quibble.the faulty unit was collected by a courier on delivery. regards john sartain