COBB Releases BMW FMIC and N55 Downpipe!
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03-02-2013, 10:42 PM
Drives: 2011 BMW 335i M Coupe
Join Date: Nov 2012
What happens if you already have a custom tune? I assume the AP will overwrite it?
If that's the case, then what would removing the Cobb tune take it back down to? Stock or post custom tune?
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