Left hand brace in the above picture ^
As @BlueAgave said, you can get after market upgraded versions.
Otherwise you are looking for Mazda Part No. N243-56-A9XA:
https://partsouq.com/en/catalog/genuine/unit?c=Mazda&ssd=%24*KwHX4_KY1LCnuJyBq43u_4-bu7yi09zR0MLRwYGBo7vXmoWT_NTQjIiFjqXVrdT_-vrXmoqPiaSKjd7M2YzWo9fc3AAAAAA2wSFk%24&vid=1421292232&cid=2512&uid=29863&q=
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