Magnuson-Moss Warranty Improvement Act
The Federal Trade Commission has enacted a law which protects you from discrimination when dealing with aftermarket products and new vehicle warranties. The Magnuson-Moss Warranty Improvement Act states that your original vehicle manufacturer's warranty shall not be voided if you properly install a properly functioning aftermarket product on your vehicle. If you should experience a problem with your dealership, you should direct your dealer representative to the Federal Trade Commission regarding the provisions of the Magnuson-Moss Warranty Improvement Act. For more information about this law and your rights as an aftermarket consumer, you may visit www.ftc.gov or contact your vehicle manufacturer. SEMA (Specialty Equipment Market Association) is also very active in protecting aftermarket consumer rights. We encourage you to visit the official SEMA website at www.sema.org for more information. In some cases, dealers may deny the warranties for new vehicles when it is evident that a specific product and/or the installation of the product are a direct cause of the warranty claim. In many cases, new vehicle manufacturers state this in writing.

uhhh yeah everyone already knows that

yup. its just the prob of proving that your perf part actually did the damage or didnt do the damage.

yes this has been well known for a long time. however, what it comes down to... if you went to court over your warranty beibg revoked for an aftermarket part it would be you vs gm. and odd's are they can afford better lawters.

yes this has been well known for a long time. however, what it comes down to... if you went to court over your warranty beibg revoked for an aftermarket part it would be you vs gm. and odd's are they can afford better lawters.

yeah but dont you think the aftermarket company would back you up i mean if they wouldnt than they should put something on there product about putting the product on at your own risk but they dont say that.

yeah but dont you think the aftermarket company would back you up i mean if they wouldnt than they should put something on there product about putting the product on at your own risk but they dont say that.

If you battle GM or the dealer alone good chance you'll lose. But if you get the aftermarket company involved then odds are the dealer/GM will back down quite a bit. At least that has been my family's experience with it.