Why try and give off the appearance of something that it is not? Like putting 5.0/GT badges on a V6. Doesnt necessarily hurt anything but it is pointless and pretty silly IMO
I dont think the drag at speeds close to 200 MPH will matter much. What track are you even able to hit those speeds? I think its obvious there will be some benefit to the R wing but it may not be the best solution to your rear tires sliding around turns.
This. I have made turns at 80+ (humble brag) on track and the rear never felt loose. You may need to address suspension/tires before looking at adding aero.
You should be able to get more than -1.75*. I have -2.3* camber with MM plates and have the BMR SP080 springs which I believe have less drop than the Steeda springs.
I have brembos so not sure if it is different on your car but I can compress the pistons by pressing them in with my hands/fingers. I also leave the cap on the reservoir.
This. I did 8 track days with PP wheels and 25mm hubcentric bolt on spacers. I now have arp studs and use a 20mm slip on spacer in the front to clear wider wheels/tires. I would recommend checking the torque of the spacers before and after each track day.