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      12-13-2012, 04:55 PM   #3
tiato
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Drives: IS e36, '08 e90 M3
Join Date: Nov 2012
Location: United States

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Bimmerworld recorded 8+ HP increase with the Macht Schnell on their ex Grand Am E92 M3. For GA, BW used a stock engine, stock intake, Motec engine managment and unrestricted header back exhaust. From what I understand this was the only change to the aforementioned package.