fyi. I emailed the seller. These are B's, not B2's or B6's. Difference being, the shocks are not adjustable on these, no stroke adjustability, 38 mm piston as opposed to 42mm on B6, etc., etc. These are probably very good coilovers and are definitely worth $500, but not sure what above that they are worth as I've never seen any for sale before and don't know what they are worth.