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I bought these to use and found they will not fit Billet Specialties Street Lite 15x10's, the rotor lug holes are opened to fit Moser studs 5/8" knurl but are hub centric and won't be affected by stock studs. Only 1 caliper was bolted up and has a slight scuff on the pad access area from hitting the inside of the rim . Never any fluid in them. The box part number shows a D but that's how Moser sent it. They are not drilled and are shown in the picture. If interested I can reopen box for pics.$400 plus shipping. Thanks, Keith