2002 GTP, the setup I have now was done by the PO. Front calipers are stock, but caliper brackets and rotors are from an 02 Camaro (F-body?). Rear is 100% stock. The larger rotors help, but was wondering if it makes sense to go for the larger dual-piston Camaro calipers, or is there a better option?

Wheels are stock 16" torque stars, which I am thinking of upsizing to 17". Originally thought 18" but it rides pretty stiff with the Vogtland springs so I don't want to totally kill the ride. Brakes are also unsprung weight, so where's the tipping point where the rotors are TOO big? Should I upgrade now or wait until I have more room in the wheels?

The front brake lines were replaced with braided stainless, but they are almost too short and the clear plastic coating is starting to crack from overflexing. Are Camaro lines longer?

I did a bunch of reading on this, but still not clear on which parts work with which.