Well the exhaust tubing that I have, has a resonator inline. Its this ebay one, just the fartcan ripped off at desoto.
89-94 NISSAN 240SX S13 STAINLESS EXHAUST PIPE & MUFFLER:eBay Motors (item 200388965768 end time Oct-28-09 13:17:33 PDT)
Add that with the magnaflow muffler, what do you think as far as sound level? I dont want like stock sound level, but I dont want as loud as my topspeed 3" that I had.