1) yes your accord has an air box under the hood. It can be removed rather easily by removing the hose clamp connecting the rubber tubing from the air box to the intake manifold. You would also have to remove each of the parts involved in the intake system (actual air box, filter, etc)
2) If you want it gone without letting all kinds of dirt and harmful deposits clogging up your engine, buy a cold air intake or a short ram (CAI is better IMO). This will increase hp, torque, and gas mileage (anything negative about that?

) I assume any aftermarket modifications to vital engine components voids warranty, but I'm not a lawyer, and I'm horrible at reading fine print so I would wait for someone else to give a definite answer
3) If you want a good set of tire, there are a number of good companies out there. I personally like my Falken Zeix. It depends on what purpose you want your tires to serve, there are tires for a variety of applications. Are you getting rims and tires or just tires? (out of curiosity)
4) pimp smiley never worked for me either. but I prefer

or
5) is your accord 5spd or automatic? I used to have 94 lx 5spd. It tore up the road!!! I miss her so