[96/10SS]

Originally Posted by Apex Chase

The LTs will not void your warranty. In order for a warranty repair to be denied do to the presence of an aftermarket part they have to be able to directly link the part to the cause of the issue in question.

Without a tune you will get a CEL, either immediately or eventually. You will also be leaving a large amount of power on the table. A performance tune will void your drive train warranty because you have altered the operational settings of the engine.

Cutting corners when modifying cars will lead to warranty issues being more likely.

Here is some info on how to select headers.

Here is some more info on warranty law and modifying cars.