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Cat Back Exhaust And Warranty

johnnyelohssa

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johnnyelohssa Enthusiast

johnnyelohssa

Posted
Posted

Will an after market cat back exhaust void the factory warranty?

 

Does anyone know where to find the warranty fine print?

 

I just bought my first brand new truck two weeks ago. My last two trucks had and exhaust installed and I kinda miss the exhaust tone. The factory exhaust sounds nice but I want a little more of a rumble.

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

Cat back exhaust won't hurt any warranty coverage unless the part itself causes a failure.

Wires Enthusiast

Wires

Posted
Posted

They can deny warranty on exhaust related components.

 

IE, if you had an issue with exhaust manfolds, exhaust gaskets, O2 sensors, cat's, be prepared for them to deny warranty on it.

 

They have the right to deny coverage if they feel your mod caused the failure. With the above items, it most likely wouldn't cause problems with them, but unless you can prove otherwise, you'll be on your own with them.

 

Dealer denied warranty an O2 sensor on my truck due to aftermarket exhaust. I could have probably tried another one to see if they would cover it, but I know I damaged it during my header install I just needed to know what code the PCM was tossing since I didn't have a reader at the time.

BigRed41 Enthusiast

BigRed41

Posted
Posted

I haven't heard of an after market cat back voiding any warranty other than if it was the specific reason for something to go wrong. If you have any doubts just keep your stock setup and replace before you go back to the dealership if you feel like the after market system caused the problem.

Silverado4x4 Senior Enthusiast

Silverado4x4

Posted
Posted

I knew someone would be posting that Magnuson-Moss Act what a joke that is. Some people think with that there in the free with everything because they can fall back on it, yeah ok.

mhenshaw Senior Enthusiast

mhenshaw

Posted
Posted
I knew someone would be posting that Magnuson-Moss Act what a joke that is. Some people think with that there in the free with everything because they can fall back on it, yeah ok.

 

 

Care to explain how GM can deny warranty for an cat-back exhaust?

 

Last time I check GM sold cat-back exhaust made by Corsa then Borla. A muffler won't effect a FI motor since it comes after the oxygen sensors. A exhaust can't hurt the powertrain because the ECM protects the powertrain.

 

I guess you think wheels void a warrenty?

MikeNH Senior Enthusiast

MikeNH

Posted
Posted
I knew someone would be posting that Magnuson-Moss Act what a joke that is. Some people think with that there in the free with everything because they can fall back on it, yeah ok.

 

 

Care to explain how GM can deny warranty for an cat-back exhaust?

 

Last time I check GM sold cat-back exhaust made by Corsa then Borla. A muffler won't effect a FI motor since it comes after the oxygen sensors. A exhaust can't hurt the powertrain because the ECM protects the powertrain.

 

I guess you think wheels void a warrenty?

 

I doubt he was trying to say that. I'm guessing (and I agree) that people throw that bs up and think it is some shield against having to hassle with denied claims. Well plenty of people have been wrongly denied coverage and the only way to fix that is a legal battle and those waste so much time and money that even if you win you lose.

Silverado4x4 Senior Enthusiast

Silverado4x4

Posted
Posted
I knew someone would be posting that Magnuson-Moss Act what a joke that is. Some people think with that there in the free with everything because they can fall back on it, yeah ok.

 

 

Care to explain how GM can deny warranty for an cat-back exhaust?

 

Last time I check GM sold cat-back exhaust made by Corsa then Borla. A muffler won't effect a FI motor since it comes after the oxygen sensors. A exhaust can't hurt the powertrain because the ECM protects the powertrain.

 

I guess you think wheels void a warrenty?

 

I doubt he was trying to say that. I'm guessing (and I agree) that people throw that bs up and think it is some shield against having to hassle with denied claims. Well plenty of people have been wrongly denied coverage and the only way to fix that is a legal battle and those waste so much time and money that even if you win you lose.

 

 

 

Thank you Mike for clearing that up for him.

GasHog369 Senior Enthusiast

GasHog369

Posted
Posted

Its a good thing for anyone to read about / know about. It's by far not a shield. Its a way for someone to be educated on what should be covered and not when altering a vehicle.

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

You can read about it all you want but in the end, if you mod your truck and have a failure that has even a slight chance of being related to the mod, expect a serious fight and be prepared to lose even if you're right. A member here with a 6.0 2500 had an engine failure that was blamed on a tune and other mods and he ended up winning in the end, but it took a massive fight to get there. Not everyone realizes this.

dlewis1111 Senior Enthusiast

dlewis1111

Posted
Posted
They can deny warranty on exhaust related components.

 

IE, if you had an issue with exhaust manfolds, exhaust gaskets, O2 sensors, cat's, be prepared for them to deny warranty on it.

 

They have the right to deny coverage if they feel your mod caused the failure. With the above items, it most likely wouldn't cause problems with them, but unless you can prove otherwise, you'll be on your own with them.

 

Dealer denied warranty an O2 sensor on my truck due to aftermarket exhaust. I could have probably tried another one to see if they would cover it, but I know I damaged it during my header install I just needed to know what code the PCM was tossing since I didn't have a reader at the time.

 

BS - the cat back is down stream of the and has no impact on the o2 sensors and cat converter. In your case, you installed components upstream and later had a problem thus the dealer denied warranty work.

NARDA1 Enthusiast

NARDA1

Posted
Posted

I installed a cat back on my 06 about a month after I bought it new. Have never had any issues with the warranty.

johnnyelohssa Enthusiast

johnnyelohssa

Posted
  • Author
Posted

So what I'm getting from all this is, if an issue arises and the after market part is suspected of causing the issue it would not be covered under the warranty. Now some people have fought and won, but that would be a big hassle. To me it would not be worth it just for an exhaust system. The reason I bought a new truck is so I would have a vehicle that would be reliable and a warranty to cover any problems without a hassle.

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

I'm gonna go ahead and say that nothing that could be linked to an aftermarket exhaust would possibly fail before the warranty was up other than maybe an O2 sensor. I've run cat backs on every vehicle I've owned since I was 16 and never had any exhaust problems or had any flack from dealers.

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