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It sounds like your front brake rotors are warped. This usually happens because the wheels were not properly tightened (torqued) when they were installed. This can also happen if you have a panic stop. The only way to fit the vibration is either have the rotors themselves machined straight or replace the rotors completely. I would normally machine the rotors if there is still enough thickness in the rotor to machine them.
Hope that helps. Thank you for your question.
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