+1 for sway bar end link...It's a C shaped thing.THE RED THING IN THIS PHOTO...https://www.google.com.au/search?q=wrx+ ... NHUn4ON2wM
Yours is probably black and plastic.....that is why we replace them with the Whiteline ones, red, gold, whatever...doesn't matter, they are alloy and don't break so easy.. Could also be the mounting bracket for the sway bar.. https://www.google.com.au/search?q=wrx+ ... 2FSGNW5ZEM
: The yellow bit on the top left... Yours is probably black metal and look like this...https://www.google.com.au/search?q=wrx+ ... qxD3EYq8TM
: They can be either replaced with this that wont break...https://www.google.com.au/search?q=wrx+ ... RX-hkOyN2M
: Or.... weld strengthening plates to your old one, along the base and either side... That's what i have done... Whiteline stuff costs a fortune.....If you want the C shaped red things in the first photo...They are $240 a pair ....You must do both unless you want to buy a new or 2nd hand stock one.. A new stock one from Subaru will also cost a fortune thats why we upgrade...