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      07-29-2012, 12:20 PM   #14
dunderhi
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Drives: 2015 M6
Join Date: Jan 2011
Location: MD

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Quote:
Originally Posted by shap650 View Post
If they have 30 day money back. Then a dyno is necessary before and after. I will look into it .
With your exhaust system, I would go with Stage 3.
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2015 M6 Drophead Coupé
2015 328xd Estate
2013 X5M Sport Utility Vehicle