G20 1998 Muffler?

[JFormantes@aol.com]

Hi guys I need your help... my stock g20 98 muffler is already rusted and is
making an annoying sound. My question is should I go for the new stock
variable capacity nissan muffler?  or go the other way which is  the
aftermarket?...

I am looking also for a stainles steel muffler, which performs like the stock
(quiet, and has variable capacity), or let say an exact copy of stock which
is STAINLESS STEEL....can somebody tell me who's making these.. what brands?