well i need to get a new muffler since i once was a cheap ass and have a ful ebay exhaust and well i got the muffler re welded on to be offset. first off the guy that done it did nohting like i told him i wanted second he overheated the metal and made it weak so the new weld ended up breaking off the hanger and taking about a three inch peice of metal with it. I heard it was the more oval shaped the deeper tone? i plan on getting a biger exhaust later cause i would like to do a motor swap and such. i currently have 2.5" exhaust. i was thinking something like this for cheap lol http://cgi.ebay.com/ebaymotors/N1-3-...QQcmdZViewItem
or this
http://cgi.ebay.com/ebaymotors/ECLIP...QQcmdZViewItem
or hell maybe even this
http://cgi.ebay.com/ebaymotors/HKS-U...QQcmdZViewItem
or this
http://cgi.ebay.com/ebaymotors/UNIVE...QQcmdZViewItem
my main question is what style or desing would be the deepest tone possible but still sound good and not ricey loud like my current one does due to the hole in the side of it. thanks for the help guys....