Guys,

I am new to the performance front disc brake market. I want to replace my stock front disc brakes with a set of high performance Wilwoods. I have 17 inch wheels and the 2 options the wilwood website gives me are below. Not really sure what the pros and cons are of each setup. It looks like one setup is a 2 piece rotor and one is a 1 piece rotor, not sure. I am looking to set the car up for autocross and road race, street legal category of course.

 
(Hub and 1PC Rotor) Forged Narrow Superlite 6R Big Brake Front Brake Kithttp://wilwood.com/BrakeKits/BrakeKitsProdFront.aspx?itemno=140-12271&year=1969&make=Pontiac&model=GTO&option=Disc +Brake+Spindle



-JW