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So after doing some searching and reading, the round thing I'm seeing in the original posters pictures is something that GM added to their pads for NVH. I guess the early caliper and pad setups made a bit of noise and well.... You can't have that on a Cadillac...
So they added some small amount of weight to the pads.
Aftermarket pads like Hawks and such do not have these weights.
My concern with these originally was that I am going to try these under a 17" wheel so space is of a concern. The OP is running 18" wheels and space is less of a concern.
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.o0+Eric+0o.
2016 Chrysler 200S 3.6
2013 FRS 6MT
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