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      12-25-2013, 02:36 PM   #150
Tylerstar
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Drives: Straight Piped F10 M5, GTR
Join Date: Oct 2009
Location: Miami

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As of right now no they are not tunable. There is plenty gains to handle but no can crack it. If your thinking your gonna buy an M4 and tune it and easily get 500-600hp think twice. Amg would be a better option if your looking to tune it.
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