"If it does not say that I can, then I can't" is a good way to put it.
"Except for modifications authorized below, Stock Category cars must be run as specified by the factory with only standard equipment as defined by these Rules" is how the rulebook words it.
To clarify in your specific situation; you are allowed to change to whatever pad (lining) you wish, however there is no mention of an allowance to change the brake rotors. As such, you must revert to the clause "Alternate components which are normally expendable and considered replacement parts (e.g., engine and wheel bearings, seals, gaskets, filters, belts, bolts, bulbs, batteries, brake rotors, clutch discs, pressure plates, suspension bushings, drivetrain mounts, etc.) may be used provided they are essentially identical to the standard parts (e.g. have the same type, size, hardness, weight, material etc.), are used in the same location, and provide no performance benefit." This means factory replacement rotors, of same material, construction, and weight as factory. In short, no slotted/drilled rotors allowed, unless the car came with them from the factory.
The section mentioned regarding braided brake hoses only applies to vehicles model years 1991 and older. In the instance of a 2007 Cobalt, you are limited to factory replacement rubber hoses. As the quote above from the rulebook states, 'factory replacement' is defined as an equal part providing no performance benefit; allowing you to purcase NAPA or CarQuest brake parts, for example.
All the information is available in the rulebook found here >
http://scca.org/documents/Solo_Rules/2010_scca_solo_rules.pdfThe Stock Category is Section 13 starting at page 69.
Pat Huxley
179HS Civic Si
88BS S2000
