After countless hours of web-searching a short conversation with Kinkyllama, I came across this web address for a company that is considering building a full exhaust system for the 04-08 Reno/Forenza if they receive enough interest. And, the link is:
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.