I think for you to use the teggy brake setup, you'll need the entire front suspension setup to utilize the braking system.

I think it would be more beneficial if you use slotted/drilled rotors and upgrade your caliper to a 4-piston caliper. I know that Wilwood makes a 4-piston caliper, but forgot which one fits.

Besides, getting bigger rotors means you'd have to get bigger wheels to clear the calipers and whatnot. Wouldn't that defeat the purpose of your newfound JDM look?