w115 in steel vs w123 plastic swaybar links, the same measurments, or perhaps a mm or two in difference, seeing that the durability is the same, the boot craks, and not the plastic, there isnt realy any advantage with paying twice the price for the metal version. for me atleast.
A 115 320 15 89 that i swapped for the one from a w123 and 40% of the price A123 329 09 89