No it will not.
A warranty is a form of insurance and there are federal and state laws that regulate warranties. A dealer can not void your warranty because you modded your car
. They can deny your warranty claim for a specific issue , if your modification caused the problem in question.
If you are going to mod your car know your rights. Attach is the SEMA page on handling warranty issues.
Most of the time you just have to say "I know my right under the Magnusson Moss Warranty act and the case law"
and the dealer will back off and do what is right