you have a 95 civic HB that has a turbocharged b18 and in mint cond.you have 5,000 dollars,what would you do for appearance?(inside and out)(when i say build it i mean like lip kit,racing seats ,etc)

I see all these ‘turbo’ cars, and it seems like all of them are honda civics (or just about). Why do people use honda civics to make them turbo (also, sorry for the sentences, i am not sure how to use turbo in a sentence properly)?
How does turbo work (i do not know much about cars)?
How much would it cost to make a Honda Civic (1995-2000) ‘turbo’?