Here are the front RSR flares taped onto the Turbo flares. You can see the opening shape difference pretty well even though the unique contour of the RSR flares would not allow a nice tight fit over the turbo flares. The rear RSR flares have such a different contour higher up on the rear quarter that I could not even tape them over the Turbo flares. The RSR flares are flatter...not rising as much as the Turbo flares at the center of the opening, and the dimension from the torsion hole edge to the corner of the opening at the rear bumper is approximately 1/2" wider for the RSR flare compared to the Turbo. Just holding the rears in place, the difference in shape looks much like the front flare difference.
Also, these flares have the small torsion hole opening (one still does, the other has been hacked a little) like the torsion holes on the Light Yellow ST. And the metal used in these flares is heavier than the reproduction flares I have seen...they are very stiff.