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All 6 lug. They use a 6 on 135mm. You even need a metric socket to take em off. A 17 is the smallest wheel that fit on them so if you're looking for some wheels maybe this will help. Good luck.
Also a 13/16" socket works just fine to get them off. Just remember to torque them to 150ftlbs when you tighten them. Save yourself some rotor trouble.