I know this has been done to death on here, but please bare with me. I am going to be fitting rear turrets to my car (going for coilovers) and have going with various measurements on here I have found that the centre line for the turret runs almost exactly through this arrow which is factory stamped into the rear arch (if my measuring is correct). So two questions, firstly what is the arrow stamped into the arch for? and secondly has anyone else fitting turrets found the measuring lined up with this arrow?
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