If you get a new one, get some TRD copy headers before you put it in, piping no larger than 2.25 inch. And use at least 1 muffler if you dont want a new race sticker on the windshield curtosey of SAPOL..... otherwise cut the current muffler off and replace it with something cheap or weld it up.
if you want a hand to knock something up to get your through... sing out.