Shaking car

Maintenance/Repairs
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1

i have a 1998 Mitsubishi mirage DE. my motor was shaking real bad and i replaced the front and rear mounts. but it shakes even worse now. i went to a mechanic and he said he has no idea what it might be. the allignment is good. i have brand new tires. i do have D2 racing coilovers. i used to drive in tilden real fast and take corners but i dont think that would do anything to it…do you? what do you think i should i do. thank you so much. ravi whitworth