This motor doesn't gain much performance with cheap mods. If you want real results, save up your pennies and do a PROPER upgrade [turbo, cams etc] or do a swap [V8, RB, whatever].
Saying you want a lot of performance for not a lot of money right after you said you spent a large portion of your budget on aesthetics [rims] doesn't help.
There is plenty of information on here and if you would have read the forum rules it already says this and directs you to use the search function and stickies.
Good luck with your project.