Quote:
Originally Posted by Hujan
You bought the "regular" (i.e., not the premium) ones, correct? It's not clear from their website what the difference is between regular and premium rotors.
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The website uses the term Premium to describe the rotors that are dimpled/slotted. I installed those on a neighbors' 323i, but I bought the drilled/slotted (regular?) for my Z4. Just their marketing/advert nomenclature. They answer phone questions in case I'm naive.
Now when they describe the premium vs standard brake pads, there is a performance difference which they address graphically.