Why is my car making a loud noise & vibrating?

Why is my car making a loud noise & vibrating? - 1
Added (1). When I turn the car on, it makes a loud noise. I hear the noise all throughout when I'm driving. When I'm at slow speeds, I dont' really hear the noise. Also, the car vibrates also. I feel it especially in the gas pedal. Not sure whats wrong/. Ford told me it was a motor mount and a mechanic said the exhaust needed to be changed. I did both and I still hear the noise and feel the vibration. What could be wrong? I'm running out of possibilities

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