You can find a couple of pictures of an ATS Chicane install in these links :
There is no GM mod on this car, it was the stock Global West arms.
https://lateral-g.net/forums/show...t=Targa+Camaro
https://lateral-g.net/forums/show...t=Targa+Camaro
I hope this helps. I am running 18 x 8.5 +20 wheels, 255/40-18 and there is just enough room, HOWEVER I do not have a full lock capability. Parking lots are a hassle.
cheezer