J jumaaneface Member : 2003 mazdaspeed protege black mica Jun 7, 2013 #2 Not on the rear but on the front I believe you do.
H hornsfan10609 Certified Mazda Tech : 2003.5 Mazdaspeed Protege x2 Jun 7, 2013 #3 I don't see why you would? Not changing any suspension geometry or touching the tie rods/struts?
D dskelly37 Member Jun 23, 2013 #4 No you do not. Sway bars do not adjust suspension geometry, merely limit it.