Does Changing the Exhaust System Void a Manufacturer Warranty? | YourMechanic Advice

Does Changing the Exhaust System Void a Manufacturer Warranty?

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Stock exhaust systems are designed to provide good operation in the widest possible range of driving conditions. That means there are a lot of compromises made. An aftermarket exhaust system can offer better fuel economy, a better sound from the engine, more power from the engine and other benefits. However, if your vehicle is still covered by the manufacturer’s warranty, you might be a bit leery about installing an aftermarket exhaust for fear that it will void your warranty. Will it?

The truth about voided warranties and aftermarket parts

The truth of the matter is that adding an aftermarket exhaust system to your vehicle will not void your warranty in most cases. Note that phrase, “most cases.” If your new system does not cause any damage to other components on the vehicle, then your warranty will be fine and remain intact.

However, if a problem arises that a mechanic can trace back to the aftermarket system you installed, then your warranty (or a portion of it) will be voided. For instance, let’s say you installed a full header-back aftermarket exhaust system, and the catalytic converter failed afterward because of something to do with the design of the aftermarket system. The warranty would be voided, and you’d be paying for a new cat out of your own pocket.

On the flip side, if the mechanic could not trace the failure to something to do with the aftermarket system, then your warranty would remain in place. Dealerships and automakers don’t really want to void your warranty, but they also don’t want to be on the hook for repair or replacement costs caused by something that you did, and that was not their fault.


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YourMechanic Smoke from engine or exhaust Inspection Service

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Number of Reviews

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Travis

12 years of experience
426 reviews
Travis
12 years of experience
Ford Escape - Smoke from engine or exhaust - Minneapolis, Minnesota
Travis is alway on time or early, very friendly, and doesn’t try to recommend things unless they need to be done.
Jeep Grand Cherokee - Smoke from engine or exhaust - Hudson, Wisconsin
Travis came and diagnosed an issue I was having with an engine I just replaced. He was very knowledgeable and went above and beyond to answer any questions I had and was very thorough with his inspection. I would recommend him to anyone I know and would definitely give him a call in the future if I need any more assistance or advice.

Jonathan

34 years of experience
398 reviews
Jonathan
34 years of experience
Kia Sorento - Smoke from engine or exhaust - Brandon, Florida
As a first time user at YourMechanic.com, it was absolutely fantastic for me that Jonathan was the one sent to diagnose my vehicle issue. I felt very much at ease from the outset due to his easygoing manner. He was very detailed, as well as patient, when explaining (and illustrating) the problem, the solution and what repairing the issue entailed. I would definitely recommend Jonathan for 1st time users (or any users of YourMechanic for that matter). As I’m not sure if I will get the work done at this point, I will definitely request Jonathan if I decide to do so.
BMW 330Ci - Smoke from engine or exhaust - Port Richey, Florida
I can’t believe how patient Jonathan was when I started “grilling” him. He was knowledgeable & thorough.

Luis

17 years of experience
238 reviews
Luis
17 years of experience
Nissan Xterra - Smoke from engine or exhaust - Teaneck, New Jersey
Luis was great! He gave me a very honest assessment of what my car needed. I would definitely recommend using him!

Nai

15 years of experience
19 reviews
Nai
15 years of experience
Cadillac Eldorado - Smoke from engine or exhaust - Oakland, California
The mechanic came to my house good job appreciate it and if I need him I will call him again he's really good

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