Quote:
Originally Posted by California98Civic
But you are running an Apexi AFC,so youare controling AFR in an unusual way. He is trying for stock functionality. This eBay item does not appear to have the downstream O2, or the heat cover for the catalyst. Seems dodgy to me. Just get the stock equipment, unless you wanna figure it out.
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Yes, I run an Apexi AFC, and when I run the Apexi I get 55 mpg avg. When I ran the setup with headers and aftermarket cat I got 45 mpg avg, but I understand what you are saying about being leery of anything but stock setup on a leanburn system.