If you want it to sound nice, don't piece together an exhaust, just buy a catback from Greddy or A'pexi. They both make nice sounding exhausts but for a little more. I personally wouldn't put anything made by magnaflow on my car. I had a DC sports header and Greddy exhaust with the stock cat on my car when it was N/A and it sounded fine. I still have the Greddy Evo exhaust and it sounds pretty good and when the turbo spools, it is completely silent. I recommend going with a higher priced setup from a trusted company instead of a muffler shop rice exhaust.