Hi all.

I recently got my 98 civic, it's really cute and runs very well ( with only 100K miles on the clock).
I was hoping to get some tips for improving it's performance without any major project and compromising it's bullet prof relability. Anything to look for? Anything to check?
I was hoping to fit a newperformance air filter which is usually cheap and easy to do, any tips on that?
Thanks in advance...