About a year and a half. It's my first purchased vehicle (I'm 21, before this my parents gave me an old 1981 Accord hatchback).
Seeing as how I'm going to school, I can't afford to do much with the car. I also have no experience with mechanics and whatnot, though I try to read as much as I can. Once I get my degree and make money, then I'll see. I'd love to turbo- or super-charge the Prelude, but again, no mon=no fun.

Right across the street from my house is a place dedicated to Honda/Acura Motorsports, it's a bunch of guys with Civics, Integras, with good-looking setups; they set up shop and do installations. Maybe I'll check them out sometime.
All it has now is a Pioneer cassette deck, CD changer, two 10" subwoofers w/150 watt amp, and I replaced the stock tweeters with some cheap $10 ones I found on eBay (which are suprisingly good, considering what I paid). So at least I got tunes.