In the engine I put 10mm iridium plugs and wires, modified a K&N intake to be a true cold air, and put on a magnaflow muffler. I didn't do much in the interior, neons wherever they were needed, including some leds in the air vents (doors too) and that took some finageling.
The audio/video in the car includes Alpines all around, a sony head unit, 1800w legacy amp pumping a rockford fosgate 12" P3 in a factory P1 box. Its got a Farenhiet LCD hooked up to a ps2 in the back seats.
Some random stuff includes a multi-million color led underbody kit, white powder coated rims, and I'm planning on replacing the red racing stripes with blue ones since red doesn't go with anything on the car and they're fading and a litttle cracked.
I don't really have the funds to do any other mods besides your basic bolt-ons, I'll probably check-out the tint scene.
More pics to come...
!UPDATE!
Tranny went so I'm abandoning this project, looking at a new tiburon.