Kirk said:PERFORMANCE CONSUMER'S BILL OF RIGHTS:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Maguson Moss Warranty Act, www.GranatelliMotorSports.com/magnusonmoss.htm (15 U.S.C. 2302(C)) . For best results, consider working with performance-oriented dealerships with a proven history of working with customers. If your vehicle manufacturer fails to honor emission/warranty claims, contact EPA at (202) 260-2080 or www.epa.gov. If federal warranty protection is denied, contact the FTC at (202) 326-3128 or www.ftc.gov. For additional information, check out the following links:
Bill of rights
Federal warranty laws
Links taken from Granatelli Motorsports, which is an excellent source for information on the matter. Contrary to popular belief, the addition of any modification, including NOS and/or forced induction, does NOT void your factory warranty. Your factory warranty, however, is not obligated to extend to your aftermarket parts or to any damage caused as a result of the installation of those parts. In short, you can modify your car however you like, and you're protected by law in doing so.
Do: Read the links I provided. They're the law, and in easy to read English.
Don't: Listen to 95% of the people on the Internet who think they know what they're talking about, but actually have no experience with it (general statement, and not directed at anyone).
Be educated. Be modified. Be happy.