Actually..
It has been said that the stock spark plugs and wires are the best ones made for an SR20DE (our engine) that is not turboed, so dont change them.
I would start with the JWT pop charger, then an exhaust (doesnt have to be loud)
You may want to get some wheels and your car lowered if you want to add some looks.
Your car should look pretty nice then and make some decent power.
You can then step up to a header and underdrive pullies to make some more power.