TWR Racing has just finished the new 2-piece floating rotors for the 2004 STi and are now in stock. (2005 STi rotors will be coming soon) These are direct replacement rotors for the STi, the size is 326X30mm. These rotors are the same rotors we use on our Big Brake kits. They feature directionally vent veins for maximum cooling. You can choose a slotted or just plain rotor. The hats are forged from 6061 T-6 Aluminum. The hardware is made from a high grade alloy. With our rotors, you'll never have to worry about "warping" another set of rotors ever again. Our rotors are very Carbotech/stock pad friendly, as well as other brands of pads. A definite 'must have' for anyone who tracks their car.
The price is $529 for the pair.
Replacement rotors are $200 each.
They are avaiable through us or any one of our dealers. www.twrracing.com