Those '98 Cobra wheels are a great example of the aftermarket influencing the carmaker. Everyone was bolting on the "R58" '95 Cobra R wheel to their SN'95s in the mid 90s. Fords answer was to create a Cobra R style wheel for the '98 Cobra, but in 17×8". Amazing how far these cars have come.
@Habu135 Do you have a good shot of the prop valve on your Cobra? I'm about to order some brand new SS brake lines and wondering if I can get them plumbed for a 93 Cobra to match up how I've set up my PV. Just need to see what the cobra plumbing actually looks like at the PV.