the issue of the wholesale roof replacement was here before the VIN rule. the VIN rule changes may have made it a larger issue because now it could result in an ITC crx si becoming an ITB car.

but let me ask the reverse and i will use my beloved crx si as an example. the standard civics and crx's from circa 85-91 did not have a factory sunroof. all the Si versions did.

now i know i saw the issue of the roof openings be "fixed" in either this forum or elsewhere where folks cut off a roof and welded a standard one on.

but if i cut the roof off a standard civic or crx and welded on a roof from an actual Si, would that be acceptable? it is not a correct VIN but would be a correct configuration, right?