I'm 19, make $16.50/hr as cadd manager at a reprographics company. Had my car for a year and a half. Bought it bone stock with 107,000 miles. Now I have:

Greddy Turbo/Intercooler kit
Rims
Lowering Springs/camber kits
ITR Swaybar
Greddy Evo II Exhaust

Most of my money goes to my car which includes insurance, parts, and maintenance. I have done everything myself, so that saved me money. Also, everything I have for my car except the ITR Swaybar was purchased on ebay.