xXx Mazda xXx
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- 2008 Mazda3 2.0
What's up guys? Ok I have a question...I recently installed headers to my 08 mazda 3 I touring...it has a 3 way catalyst and on the stock exhaust manifold when I removed it the little cat came out with it and now when I clear the code (po421) after certain amount of miles it comes back on...same code...has anyone figured a way to fix this problem?