@Thumper1 I'll be totally honest with you, I didn't do my homework when I ordered them.
Here's what I found online: "Tarox F2000 Brake Discs
Designed for those who alternate the use of the car on the road with serious sessions on the track. The curved grooves deglaze the pads and allow the disc to run cooler."
Quick photo I snapped not along ago at a local park.
Recently popped in new fog-light housings and the car looks brand new again from the outside. 120k of rock chips on those bad boys realllly added up
Tried restoring them while on the car and it was a pain in the ass, figured if they came out they may as well get replaced