hey - anyone ever put row headers on a north american car? specifically, on the 3.2S aus and uk boxsters there are no cats on the headers, while on north american cars there are (and i think euro cars). look at this ebay listing (and note the part # on the header):
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=320408728636&viewitem=&sspagename=STRK%3AMEWAX%3AIT
looks like porsche would rather delete the cats on the headers than on the midpipes. i'd read that there is no power difference between the two iterations, but perhaps a weight savings?