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Modify 2006 Z4 3.0 to a 3.0si

Discussion in 'E85/E86 Z4 M roadster/coupe (2006-2008)' started by larcar70, Mar 3, 2011.

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    What parts are needed to upgrade to the 3.0si? I believe there are intake modifcations and reprogramming of the computer. Would appreciate any info. Thanks in advance.

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