Well depending on how much I can save up before the current tires wear out. I could go for a wheel and tire combo or just better tires. The tires I have in mind are Direzza Star Spec, Yokohama AD08, Yokohama S. Drive. No Idea how much they cost though, and I'm open to off-brand alternatives if they're of good quality.

Stock tires are Dunlop SP Sport 230. No Idea how well they stack up against other tires though.