According to Maximum Motorsports, the Koni Yellows ride and handle better than the Bilsteins on the GT500.
Not normally a Koni fan, but am thinking of giving them a shot to replace my FRPP Tokicos.
There's a whole controversy behind the S7 as well.
https://jalopnik.com/the-mysterious-disputed-birth-of-americas-greatest-sup-1675129620
"But after several months of research I can say that depending on who you ask, Saleen didn’t come up with the car at all."