Quote:
Originally Posted by Locust
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Essentially all the factory performance catalogs are treated equally to any other aftermarket catalog. There's a specific callout in the rules for bodywork, but an extreme example would be if there was a turbo kit in the STi catalog, that wouldn't be legal either.
Under 14.2 Bodywork:
F. Addition of spoilers, splitters, rear wings, bumper covers, valances, side skirts, and non-functional scoops/vents is allowed provided that either:
1. It is a production part which is standard or optional equipment of a
US model of the vehicle. (“Model” is defined in Section 12.)
2. It is listed in the vehicle manufacturer’s US accessory catalog for that vehicle for normal highway use. This does not allow for parts sold through a manufacturer’s performance catalog (e.g., Ford Racing, HPD, Mazdaspeed, Mopar Performance, Mugen, NISMO, SPT, TRD,
etc).
I'd expect that would apply to any other GR part like the door stiffeners as well. I know that particular part has been mentioned in Miata circles as not legal for ST.