Information on Warranties and Performance Modifications: The Magnuson-Moss Warranty Act
In most instances, under the Magnuson-Moss Warranty Act,
aftermarket equipment that improves performance does not
void a vehicle-manufacturer's original warranty.
The question may arise as to whether an engine-performance enhancement, or other performance modifications, will void your vehicle's warranty. In most situations, they do not. If a problem arises with your vehicle that has nothing to do with the modification, restrictions to the warranty don't apply. Under the Magnuson-Moss Warranty Act, aftermarket equipment that improves performance does not void a vehicle-manufacturer's original warranty.
Note: There are certain conditions where the Magnuson-Moss Warranty Act does not cover you. One such instance is if the warranty clearly states that the addition of aftermarket equipment automatically voids your vehicle's warranty. The other is if the aftermarket device is the direct cause of the failure you are getting repaired. To find out if adding aftermarket accessories will void your warranty, check your owner's manual or ask the dealership.
For more information on warranties, modifications and the law, click here.
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