The reason they seem like they have no profile is there's really no reason to run a 30 series tire with those widths on a 19. OEM nismo rear would be 285/35 on a 10.5 and a 245/40 front.
For aftermarket, I always recommend going wider. SINCE you're not lowered at all, you really don't have anything to worry about. You could easily run a 265/35 front and a 305/30 rear or a 285/35 rear and add a 15mm spacer.
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