As a matter of fact I have done some myself, and have been unsuccessful. No need to be a jerk about it sir. Unfortunately I work 2 jobs at the moment and don't exactly have as much time as I should for searching for parts.
Normally yes a question over exhaust A and B would be good, if I know what that was. These forums are for people to help others learn, not be jerks like you and not answering a simple question that was asked by a person who is not knowledgeable in cars. Frankly you being an asshole with your reply has turned me off a little to the idea of being a car guy, not to mention the Mazda forum itself.