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Which Mods Will Void Your Warranty and Which Are Safe? Be Careful.. YouTube Start of suggested clip End of suggested clip Converters. Because uh your cat-back exhaust comes after uh really the engine. And after the cats aMoreConverters. Because uh your cat-back exhaust comes after uh really the engine. And after the cats a lot of times if something goes wrong with your cats the the uh the manufacturer. Or the dealership.

Just having headers or any aftermarket part on the vehicle does not void your warranty. They also can't void your entire powertrain warranty simply due to the addition of aftermarket parts.

Long tube headers, high-flow cats and aftermarket exhaust will only void your warranty on your headers, cats, and exhaust system. Obviously, if you get this stuff installed and there's an exhaust leak, and you take it to the dealership, they will not cover it under warranty.

Here is a list of the top five car modifications that will void the warranty of your car. Alloy Wheels. ... Electrical Modifications. ... Engine Remap. ... Exhaust. ... Audio.

No, they won't void a warranty unless it proves to cause a failure. Catted or catless, it doesn't matter. If you have a visual inspection in your location, I'd hang onto the cats. If no visual inspection, do whatever you want.

While some dealers would have you think otherwise, simply having an aftermarket part or modifying your vehicle cannot void your warranty. However, if that part led to something breaking on the vehicle, the dealership can deny your warranty claim.

For example, car manufacturers must still honor warranties if you modify your exhaust system but begin to have trouble with your transmissions. But, if your cat's back exhaust system directly or indirectly causes damages to other areas of your car, car manufacturers may have the right to refuse warranties.