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Sprint Booster

Discussion in 'E85/E86 Z4 M roadster/coupe (2006-2008)' started by wadeshanley, Mar 25, 2012.

    • Member

    wadeshanley

    Post Count: 1
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    anyone have any experience with the Turner Sprint Booster? is this worth the money? Any other recommendations for performance tweeks? I've had my 2007 Z4 M roadster for about a year. Im looking at various performance improvement options.
    • Staff

    steven s

    Post Count: 2,517
    Likes Received:125
    I always suggest the first performance mod to be the driver.
    Do you autocross?

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