Not more than an hour ago, I placed an order with Performance Parts, Inc. for a complete Cobra brake upgrade. Here's the prices and packages:
1. Cobra 10th Anniversary front kit $399
Description: Cobra 10th Anniversary front 13" brake kit, includes 2 red "COBRA" brake calipers with mounting brackets, front brake pad set, 2 brake hoses with banjo bolts and washers, and 2 Brembo brake rotors
2. Cobra 10th Anniversary rear kit $389
Description: Cobra 10th Anniversary rear 12" brake kit, includes 2 red Cobra brake calipers, 2 caliper mounting brackets, 2 anti-moan brackets, rear brake pad set and 2 Brembo brake rotors
3. Stainless Steel braided hoses $80
I got the whole thing for about $950 with shipping. You won't need any other parts. Some people suggest a Cobra master cylinder, but many more don't use it and are fine. My local shop says to keep the GT m/c, as most of their customers prefer it that way.
I've seen a couple places with slightly better prices, but PPI offers OEM parts and they are highly recommended by others here.
Can't wait to get them installed! I'm also installing a new set of 03/04 Cobra front control arms while I'm at it. This should compliment my current mods well.