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      11-25-2019, 08:42 PM   #2
Caduceus
First Lieutenant
Australia
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Drives: 2008 135 (sold), 2017 M2
Join Date: Jul 2008
Location: Australia

iTrader: (0)

Depends entirely on your driving habits. It could be anything between OEM -1.5 to aggressive -3.++

Also depends on whether you want to set and forget or if you’re prepared to make changes between street and track days.

Pick a number and monitor your tyre wear. Adjust as needed. Perhaps -2.0?
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