you will get sfa kw from intake and catback exhaust, especially seeing as both are new and won't be clogged, plus the exhaust is still restricted by poo-some stock manifold.

If you want to feel any decent amount of increase in acceleration, get diff gears changed....nothing else by itself will compare (even aftermarket headers, or a tune or underdrives).

how much for new gearing?
also, will super lows make my car scratch or scrape anywer? with passengers.
and jus stock wheels?

with superlows, you will have to take care when crossing bumps etc.

but its not going to give you rwkw if that is what your after.

ill back what everyone else is saying, get some general bolt ons ( full exhaust, CAI ) and a retune.

see how she goes.