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Short answer no. For the long answer google Magnuson-Moss Warranty Act. Basically it says they can't void your warranty just because you added a particuliar mod to a car. They have to prove that the mod caused the problem.
 

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I Stall Automatics said:
I've heard different things so I'll ask you guys... would installing a Lingenfelter Cold Air Intake in my car void the GM warranty? :confused
I would not believe so. If it causes a code to set, like a fuel trim lean code because the MAF is clocked wrong, you may have to pay for diagnosis and repair. They should not void your warranty for throwing a rod or spinning a bearing because of the CAI.
 
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