Thread: Z4R for track duty?
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      07-07-2017, 11:34 AM   #14
joelselman
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Drives: 2005 Z4, 2001 530
Join Date: Apr 2014
Location: lake havasu city, az

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NASA allows the Z4R in all HPDE classes including time trial. I track mine regularly in time trial with stock "rollover protection".
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