I checked the https://thefactoryfiveforum.com/show...ire-Repository and it doesn't look a single person is running a 28" tall tire.

Are there clearance issues, or are the 26" tall tires just the norm?

Pretty sure the car here is on a 315/40 rear (27.9" tall) and to me the fit looks amazing: https://stanceworks.com/2019/03/aest...lass-champion/