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hello! today I was cleaning the wheels on my 2004 crossfire. When I reached the driver sides rear wheel I noticed something odd. I found a pretty rusted/corroded tube that looks like it connects to the brakes. the tube is located right above the brake rotor, a tad further into the car.

I’m guessing it’s the brake line?? I went over to the other rear wheel and that line is in much better condition.

can anybody tell me what this part exactly is?

has as anybody on here ever had this replaced??

any my info would be greatly appreciated :-) thank you!!!