are you running NA or with an SC/Turbo? if youre running NA you really dont need any more of an upgrade than the Euro floating rotors. If you've got a supercharger or turbo then move up to the Brembo kits or even a Porsche 993TT kit. the difference is 1200-1500 for the euro rotors and 2500 for the brembo/porsche setups.