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      10-20-2021, 07:59 AM   #5
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Drives: Z4 M Coupe
Join Date: Nov 2007
Location: Seattle, WA

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On my slightly lightened OG (3370lbs with a full tank) and stock power, I haven't had issues on track with the blue brakes running 20-30 min sessions and a cool down lap. Yes, they change color and the dust boots crack after a few track days, but they work fine with a good fluid (SRF) and track pads (Pagid RS29 or Ferodo DS3.12). Dust boots are easy to DIY and I am trying the StopTech silicone boots to see if they last longer.

Your Comp is quite a bit heavier 3600 or 3650 (if DCT) and has a bit more power. Your experience would vary. If I were you, I'd either run 19s or do the smaller rotor with the right carrier to move the caliper in and find the right wheels; or get a AP or StopTech ST60 kit.
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