i have a custom made front pipe on my '87 wagon and it is holding up very well, but at some point in the summer i am going to replace my entire exhaust front to back so i have been looking into this too. i priced the front pipe at the dealer and it is over 1000.00 canadian.
this seller has it on ebay. i have no idea how the quality would be on this pipe.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=320176133449#ht_1239wt_1061