Jim,
The Wilwood brake systems sold by the vendors employ rotors that are 12 3/4" in diameter. I have been told the oem wheels will not fit over the Wilwood system, but I haven't tried it to verify this.
However, our sponsor, PI Motorsports, sells an upgrade for the oem brakes (4 piston calipers, etc) that does fit inside the oem wheels. The components of this system are not Wilwood however.
cowboy from hell
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