Header

i am looking into geting a vibrant or obx 4-2-1 header, but the vibrant i'm looking at says off-road only, are there any that are street legal?  any suggestions?

Here are some previous discussions about headers for the mazda3 on this forum...

http://www.mazdaforum.com/m_44898/tm.htm

http://www.mazdaforum.com/m_19717/tm.htm

http://www.mazdaforum.com/m_39529/tm.htm

http://www.mazdaforum.com/m_37281/tm.htm

http://www.mazdaforum.com/m_36090/tm.htm

...but you wont find street legal headers for the 3.