Sorry welcome.
Have you got 2 gen disk and rotors now?
If you want to improve your times, it will not happen by upgrading to bigger brakes in a NA. You need to setup your suspension just right and put in HC800 pads even in a Gen 2 setup. Get a set Hankook Z2221 or better. Take some weight of the car, That will make you 2 second quicker per lap. Worry about the big brake after Wakefleid if think you need them. I know big brakes look and sound cool but it's an over kill on these light weight car. If you were doing endurance racing with high horsepower maybe, then I would get floating hubs etc, but were talking short sprint sessions.