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      11-05-2018, 11:42 AM   #2
Z K
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Drives: E90 M3, G20 M340i
Join Date: Jul 2011
Location: San Francisco

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I run Project Mu HC-CS on track. It is a pretty good pad and can handle some serious heat. I don't see a need for a BBK if you're running street tires. I'm also running Castrol SRF. It is good but towards the end of the session it will feel mushy. But after cooling off, the brake fluid recovers. Endless will have less of the mushy feeling and give you a stiffer pedal but Castrol is slightly cheaper. I usually run Project Mu G four which is kinda between Endless and Castrol.. Switched to Castrol this time as it is easier to find.

I am running stainless steel lines... but the only reason I changed is because my front brake line failed and it was leaking fluid. Too many heat cycles from track use cracked the rubber hose.

I agree the stock seats really suck. I will probably get a more supportive aftermarket seat soon.
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