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      02-23-2013, 05:05 AM   #14
DirtyE90
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Drives: 2006 BMW 325I
Join Date: Feb 2013
Location: Jacksonville, NC

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Octane booster will never go into any of my cars. I would not suggest doing it yourself.

How are you tuning your car? Are you bringing to a performance shop and letting their tuner tune the car?

If you do it yourself. I hope you have a good understanding of Air/fuel ratio's. And an A/F gauge. Not some AEM cheese gauge.