would i be able to run, say...dba cryo-treated slotted rotors in stock class? i know nasa specifies the "brake linings" (which i'm decyphering to be brake pads) are free provided the contact surface of the brakes is not increased.

slotting the rotors will decrease contact surface a little and there's nothing i've found that addresses cryo treatment or anything like that. rally america's brake requirements are basically the same as nasa so if i'm legal for one, i'd be legal for the other.

thanks for the info.

 

I couldn't find the answer myself, but I found the best place for you to ask: http://www.rally-america.com/forums