Welcome along, couple of cheap mods can be done to free up some power even if you're not chasing it. Turbo or corolla inlet manifold can add good response along with a good cai Stripping it is an obvious one. Turbo brakes are easy to come across, only really need the caliper carriers and turbo discs. There is some other options if you want thicker or bigger than oem discs. Antilift caster kit, i found this gave a better turn in on my car Rear anti roll bar is recommended by a lot of people. Depends on budget shocks/springs or coilovers? Tyres. Braces. Geo.