2000 Celica GT-S

So I'm a noob here..and I dont know too much about cars, but I'm eager to learn some stuff.

I've been checking out some cars and I came across a car that caught my eye. It is posted on Craigslist so I'd deffinitley have to go check it out. I'm gonna post all the specifics in the car below, will you guys help me out tell me some pros and cons? your help is greatly appreciated.

Engine:
AEM cams, headers, pulleys, and intake
Tsunami exhaust
Transmission stick

Music:
Flip up 7in Head-unit
4 9in Pioneer door speakers
12in sub woofer
2 Tweeters
1500 Amplifier
iPod hook up in glove box

Body:
Full Velside body kit
Black and Green metallic custom paint
18in Black rims with a chrome lip
Lowering Springs
Projector Headlights
Shaved door handles

Interior:
Short shifter
Leather seats
Gauges
Light up dash board (can change color)
Lambo door poppers
Dash part same color as car