Quote:
Originally Posted by perryair
im thinking about installing an uncatted jdl uel header while keeping the rest of the exhaust stock. excited about the potential for a bit of subie rumble and the pickup in midrange and high end grunt but the eco friendly part of me is curious if the stock cat on the front pipe does any decent job of filtering out exhaust pollutants? don't know if anyone has explored that at all or actually tried to bring their similarly setup car through a sniffer test to see.
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Offset the increased emissions by running E85
