Tuner - performance-oriented modifications. Forced induction, nitrous, reflashes.
Modder - "tasteful" non-performance oriented mods. Body kits, ride height, audio, etc.
Ricer - tasteless non-performance mods. Fart cans, Home Depot lip kits, crappy body kits, stick-on air scoops, massive wings on FWD cars.
Oh, and the 22" and larger wheels - that's the "donk" crowd.
That's my '05 Tiburon 2.7 V6 with a supercharger, intercooler, cold-air intake, and countless other performance mods. By the time I decided to move on to my Boxster, it was making roughly 2x WHP over stock. Not rice.