Parts for that car most likely you will only beable to get them from the dealer which means big $$$ for a really cheap part.
Guess youve never heard of Ebay, Nopi, MazdaSpeed, Erebuni, or the other BILLION websites outthere offering performance/kits for the Rx8's. Also who wants a Srt4 when you can have a peice of History...? Rotary