Call the honda dealer back and tell them what they are doing is illegal!Ok I got a call back from Honda and they said that they can't do anything cus my car was highly modify, this is ridiculous, I only have a intake!! And they also said that never had a report of this happening to any civic owner, and that only one who have this problem!!
Look that up and know your rights, a warranty can not be voided just because of an aftermarket part. They have to prove that that part caused the engine mount failure.