If your going for performance, I'd do the downpipe or headers or PCM.... but you'll need a case learn with the PCM, so budget for that also. Don't forget about strut bars.... you will deff notice those.

If your going for looks, I'd do the springs... but how old are your struts? Mine as well replace them also. What about window tinting? Do something free, like de-badging it.

its a daily driver so i dont wanna pour too much money into it
When I bought this car 6 years ago...... I said the same thing.