What muffler for my 240sx is best?

I have a 93 240sx and not much money what muffler can i buy that wont break the bank that will give me a sound more like a subaru wrx you know a deeper tone i hate the ticked off bumbble bee sound to me its like a loud constant fart lol. Can you help please. As so as a p.s. My car idels really ruff and some stime stalls but when i am driving its smooth. Thanks