I decided to install my RECARO GT3 seats into my C4S. It came with sliders / brackets but the previous owner didn't confirm that they were in a 911. The brackets look a little different than what I'm finding online, but I wanted to confirm with those who have installed these seats if this is the correct bracket if I need to purchase brackets to fit on these sliders?
Pics below - Thank you!

 

Those look like planted seat brackets, should have a part number on them you can google. Also they do look like they aren't 911 specific brackets as you assumed.
Shawn