I just bought me a 2004 mazda speed RX-8, and i am wondering what cind of upgrades i should get i have an magnaflow exhaust in it.. i just want to spend $500 on upgrades so could you help me out..

 

Hello and welcome to the forum, Your question has been asked (and answered) 100’s of times so you should do a search in the various sub forums of the Tech section https://www.rx8club.com/forumdisplay.php?f=21
Also keep in mind that there are no cheap bolt on upgrades that give you big power gains. This is not an easy car to upgrade, for $500 I would suggest sway bars as the most cost effective upgrade.