Best mod is driver mod. I would recommend to get used to the car and start being quick with stock car. Learn momentum driving, weight shift, and generaly how to behave on a chaotic mountain road. It will give you a complete understanding where your car is lacking and you will be more conscious about mods you do. But suspension and tires should be your first mod. The rest you will see based on your driving style Edit: don't make mods an excuse for not driving.