brakes
i totally agree with the first response. if you're just drving on the street or you drag the car, the stock cobra brakes should be more than adequate with a pad upgrade. Unless you drive like a lunatic on the street, I can't imagine generating enough heat in either situation to cause a serious fade problem.
if you auto-cross or open track the car, Baer makes a great system. Their Pro-plus and Extreme are vast improvements over the stock system. While thye don't sell a rear caliper, you can swap out the rear rotor and go with their eradispeed setup. all this will run you 4-5 thousand dollars. hardly worth it if you don't auto-cross or open track the car.
I've also heard good things about Stop Tech from the EVO, WRX, and BMW crew I see at the track. Cars I've raced that had the Syop tech system performed very well. However, I've never seen them on an open track Cobra (maybe because most cobra owners just drag race). They may be worth looking into but I've talked to Eric at XMP about them. He doesn't like the Stop Tech setup. If he's than man tuning your car, maybe you should take his advice. he's never steered me wrong.
If you really put the brakes to the limit, just get slotted rotors. Cross drilled rotors look pretty but may crack when you really flog them at the track. And when I say flog, I mean repeatedly pushing the car to 100% which is hard to do unless you have some serious seat time at the track.
by the way, how did you get 550 HP from those mods? typically, they should put you between 480 and 500 to the wheels. just curious. did you leave somehting out?
MCJPD3