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      03-14-2012, 12:35 AM   #10
MFKN3
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Drives: 4.5L stroker s/c E92 M3
Join Date: Nov 2008
Location: Australia

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The tune and catless pipes

I don't think meth will add a lot of benefit to an NA engine though. I've run meth previously on an N54 to lower IAT and increasing 'octane' so I could safely increase boost. I think with meth alone, and no extra boost it added only a few ponies. Also very shady for insurance