As to the rotors-I seem to have an incorrect interpretation based on the simple fact that many folks use parts from the aftermarket (ie. autozone for example). I agree that there is no specific rule permitting any rotor other than OEM in the ITCS since it only mentions "manufacturer's specifications" for truing.
I have no problem with people using replacement parts from an alternate source due to cost or scarcity. For example a stock CRX hood sells for $250 new and the aftermarket piece is $129. They are identical so far as I can tell yet the rule would suggest this to be an invalid choice just as it would for the bumper cover with or without the airdam attached. The CRX Si airdam is a bolt-on and thus should not be molded into the cover.


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Grandpa's toys-modded suspensions and a few other tweaks
'89 CRX Si-SCCA ITA #99
'99 Prelude=a sweet song
'03 Dodge Dakota Club Cab V8-Patriot Blue gonna tow