Thread: COBB Releases BMW FMIC and N55 Downpipe!
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      03-01-2013, 12:15 PM   #8
josemh23
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Drives: 135i
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Why does stage 2 make less power than stage 1 fmic? Which map do you run if you have both mods??? I tough downpipes gave more hp. Thanks for your answers !
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