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...however the Stage1+ maps will make more power than Stage2 as the FMIC is a bigger restriction than the downpipe...
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This is opposite my experience. This must be in reference to the COBB Downpipe that retains a catalytic converter.
I think most people who bother to swap out the downpipe have gone with a catless version.. I'm curious if the Stage 2+ maps aren't going to take advantage of an open downpipe?