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      11-07-2009, 06:49 PM   #103
enrita
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Drives: 335i - Big turbos
Join Date: Sep 2008
Location: Italian in Sweden

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I dont think is needed to lower compression. We are not boosting 25 psi and i guess alpina choose that route only for durability since the car should be able to run as oem does. You can always raise the head to lower compression.
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