FYI, these are the only usable parts on most all non race cars, weight stages 4/5,Triple-plate clutch, Racing flywheel, Racing Catalytic converter and 4 piston brake upgrade. Some will take the Super High rpm turbo and a very few will run the Ultra High rpm turbo. These turbos are mostly for race cars that run turbos.
You already have the brake balance controller on any car. The AYC will only work on Evos and can be purchased in the tuning shop. The other tires you can only use for fun in practice mode so don't waste your time on tires.
I am not offering these parts just letting you know about them since I have tested all of them on about 100+ cars. They are out there you just have to find the right person.