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      11-06-2012, 06:23 PM   #14
MaxL
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Drives: E90 M3, Cayenne T, 991 GT3
Join Date: Jun 2007
Location: Bay Area

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Just checked - all pistons are exactly the same size. I'm pretty sure I've read that Alcon uses differential sizing, but I could not find evidence of that. Anyway, I do not think anything is reversed because the lettering on the calipers is just like in their brochure and everyone's photos - not reversed.