You should have a muffler shop custom make one for you. I have a complete 3" exhaust system from turbo to atmosphere. I paid about 400 for everything from the cat back to be mandrel bent, and welded up. $400 included the magnaflow muffler and they also installed my wastegate dumptube back into my downpipe. So if I got all that for 400 you should be able to get yours for less.