Emissions warranty
Senior Member
Joined: Jun 2007
Posts: 190
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From: Horsham, PA
depends... if you cut into a pipe, that pipe's warranty is no more... if the cats are on that pipe... say goodbye to the warranty on the cats... must remain factory... a cat-back does not however void your emissions warranty but it does however void any warranty on the parts that you replaced.
Just think of it this way...
if any of the parts are changed or replaced... those parts are now unwarrantable.
Just think of it this way...
if any of the parts are changed or replaced... those parts are now unwarrantable.
Ok this is on our website and its talking about Mufflers and Exhaust Systems:
NO. It's also illegal for a dealer to deny you the OE warranty because you have changed the exhaust system. This is an often asked question. But you will need to be armed with some basic information.
Under the Magnuson Moss Warranty Act of 1975, 15 USC, 2302 and Clean Air Act 42 of USA code 7541, you have rights.
This legislation basically states that:
In order for a dealer/manufacturer to deny a warranty on a claimed part, they must PROVE that the part YOU installed/had installed DIRECTLY caused the failure of the part on which you’re claiming the warranty.
What does this mean to you?
Let’s say you install a turbocharger to the engine. Could this void the transmission warranty? The axle warranty? The answer is “possibly,” as the increased stress to these components cause by the increased power output from the turbo could indeed cause your warranty to be denied.
What about a cat back exhaust system?
Since most high quality systems, at least those systems that are 50 state legal, are installed behind the catalytic converters, there should be no warranty concerns to other components, even emissions components. Most exhaust companies, including MagnaFlow, design their systems so that no modification is necessary to get the systems to fit. They will not trigger “check engine” lights unless there’s a leak in the system which almost always caused by an oversight during installation and they will not effect emissions. Remember: the engine creates the emissions, the exhaust system is the path from which they exit. A freer flowing exhaust will not do anything to inhibit emissions expulsion or to increase emissions output, all of which is controlled by engine management and the catalytic converter(s).
Any properly engineered exhaust system will not cause any failures of any other parts of the engine, suspension, chassis, transmission, electrical system, etc.
Of course, there’s a great deal to be said for the importance of having a qualified installer work on your vehicle. While MagnaFlow goes to great lengths to provide ample clearance of fuel lines, electric lines, brake lines, etc., like any part you’d install, if care is not exercised, there could be interference with equipment on the vehicle. That’s why we recommend using a MagnaFlow “Preferred” dealer to do your installation, unless you have at least some basic knowledge of working on vehicles.
In any case, the most important thing you need to know is that you need to be armed with this information. In many cases, dealers are just plain timid in doing repair work on vehicles that are even remotely different.
What to do if denied a warranty?
You MUST get the denial in writing and demand that they are very specific in why they’re denying the claim and in providing solid evidentiary proof in how the part you installed/had installed caused the failure for which they’re denying the warranty.
Next, contact the Regional Service Manager and of course, the manufacturer of your vehicle, mention the Magnuson Moss Warranty Act and document every word they say and retain copies of all paperwork. The problem is usually corrected here, as manufacturers know the law, dealers are just being cautions. Of course, some dealers are better than others and we’ve all had bad experiences. Use the internet chat rooms to seek out owners of similar vehicles to share their dealer experiences…its’ a powerful tool.
In most cases, when they realize that you’ve done you’re homework, the dealer and manufacturer will realize that they’re obligated to comply with the law.
For more information visit the SEMA website www.sema.org. SEMA is a trade organization of the automotive aftermarket, which has been active in protecting consumer rights.
NO. It's also illegal for a dealer to deny you the OE warranty because you have changed the exhaust system. This is an often asked question. But you will need to be armed with some basic information.
Under the Magnuson Moss Warranty Act of 1975, 15 USC, 2302 and Clean Air Act 42 of USA code 7541, you have rights.
This legislation basically states that:
In order for a dealer/manufacturer to deny a warranty on a claimed part, they must PROVE that the part YOU installed/had installed DIRECTLY caused the failure of the part on which you’re claiming the warranty.
What does this mean to you?
Let’s say you install a turbocharger to the engine. Could this void the transmission warranty? The axle warranty? The answer is “possibly,” as the increased stress to these components cause by the increased power output from the turbo could indeed cause your warranty to be denied.
What about a cat back exhaust system?
Since most high quality systems, at least those systems that are 50 state legal, are installed behind the catalytic converters, there should be no warranty concerns to other components, even emissions components. Most exhaust companies, including MagnaFlow, design their systems so that no modification is necessary to get the systems to fit. They will not trigger “check engine” lights unless there’s a leak in the system which almost always caused by an oversight during installation and they will not effect emissions. Remember: the engine creates the emissions, the exhaust system is the path from which they exit. A freer flowing exhaust will not do anything to inhibit emissions expulsion or to increase emissions output, all of which is controlled by engine management and the catalytic converter(s).
Any properly engineered exhaust system will not cause any failures of any other parts of the engine, suspension, chassis, transmission, electrical system, etc.
Of course, there’s a great deal to be said for the importance of having a qualified installer work on your vehicle. While MagnaFlow goes to great lengths to provide ample clearance of fuel lines, electric lines, brake lines, etc., like any part you’d install, if care is not exercised, there could be interference with equipment on the vehicle. That’s why we recommend using a MagnaFlow “Preferred” dealer to do your installation, unless you have at least some basic knowledge of working on vehicles.
In any case, the most important thing you need to know is that you need to be armed with this information. In many cases, dealers are just plain timid in doing repair work on vehicles that are even remotely different.
What to do if denied a warranty?
You MUST get the denial in writing and demand that they are very specific in why they’re denying the claim and in providing solid evidentiary proof in how the part you installed/had installed caused the failure for which they’re denying the warranty.
Next, contact the Regional Service Manager and of course, the manufacturer of your vehicle, mention the Magnuson Moss Warranty Act and document every word they say and retain copies of all paperwork. The problem is usually corrected here, as manufacturers know the law, dealers are just being cautions. Of course, some dealers are better than others and we’ve all had bad experiences. Use the internet chat rooms to seek out owners of similar vehicles to share their dealer experiences…its’ a powerful tool.
In most cases, when they realize that you’ve done you’re homework, the dealer and manufacturer will realize that they’re obligated to comply with the law.
For more information visit the SEMA website www.sema.org. SEMA is a trade organization of the automotive aftermarket, which has been active in protecting consumer rights.
Senior Member
Joined: Jun 2006
Posts: 454
Likes: 0
Another thing to think about is your open ended question. A muffler is an emmision device in itself, and there is no way a dealer that didn't sell it to you will do anything to warrenty it.
I would also have concerns about turning a dealer loose on my truck after I drug them thru upper managment then forced them to admit they where wrong to their superiors, but then I don't like others working on my trucks anyway. I would rather ask other dealers that are close (if there are any) about the same thing before I got too carried away.
I would also have concerns about turning a dealer loose on my truck after I drug them thru upper managment then forced them to admit they where wrong to their superiors, but then I don't like others working on my trucks anyway. I would rather ask other dealers that are close (if there are any) about the same thing before I got too carried away.
[QUOTE=02XLT4X4]A muffler is an emmision device in itself.
How is this possible? Can You explain? Very Curious
How is this possible? Can You explain? Very Curious
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Senior Member
Joined: Jun 2007
Posts: 190
Likes: 0
From: Horsham, PA
Originally Posted by MagnaFlowRep
Ok this is on our website and its talking about Mufflers and Exhaust Systems:
NO. It's also illegal for a dealer to deny you the OE warranty because you have changed the exhaust system. This is an often asked question. But you will need to be armed with some basic information.
Under the Magnuson Moss Warranty Act of 1975, 15 USC, 2302 and Clean Air Act 42 of USA code 7541, you have rights.
This legislation basically states that:
In order for a dealer/manufacturer to deny a warranty on a claimed part, they must PROVE that the part YOU installed/had installed DIRECTLY caused the failure of the part on which you’re claiming the warranty.
What does this mean to you?
Let’s say you install a turbocharger to the engine. Could this void the transmission warranty? The axle warranty? The answer is “possibly,” as the increased stress to these components cause by the increased power output from the turbo could indeed cause your warranty to be denied.
What about a cat back exhaust system?
Since most high quality systems, at least those systems that are 50 state legal, are installed behind the catalytic converters, there should be no warranty concerns to other components, even emissions components. Most exhaust companies, including MagnaFlow, design their systems so that no modification is necessary to get the systems to fit. They will not trigger “check engine” lights unless there’s a leak in the system which almost always caused by an oversight during installation and they will not effect emissions. Remember: the engine creates the emissions, the exhaust system is the path from which they exit. A freer flowing exhaust will not do anything to inhibit emissions expulsion or to increase emissions output, all of which is controlled by engine management and the catalytic converter(s).
Any properly engineered exhaust system will not cause any failures of any other parts of the engine, suspension, chassis, transmission, electrical system, etc.
Of course, there’s a great deal to be said for the importance of having a qualified installer work on your vehicle. While MagnaFlow goes to great lengths to provide ample clearance of fuel lines, electric lines, brake lines, etc., like any part you’d install, if care is not exercised, there could be interference with equipment on the vehicle. That’s why we recommend using a MagnaFlow “Preferred” dealer to do your installation, unless you have at least some basic knowledge of working on vehicles.
In any case, the most important thing you need to know is that you need to be armed with this information. In many cases, dealers are just plain timid in doing repair work on vehicles that are even remotely different.
What to do if denied a warranty?
You MUST get the denial in writing and demand that they are very specific in why they’re denying the claim and in providing solid evidentiary proof in how the part you installed/had installed caused the failure for which they’re denying the warranty.
Next, contact the Regional Service Manager and of course, the manufacturer of your vehicle, mention the Magnuson Moss Warranty Act and document every word they say and retain copies of all paperwork. The problem is usually corrected here, as manufacturers know the law, dealers are just being cautions. Of course, some dealers are better than others and we’ve all had bad experiences. Use the internet chat rooms to seek out owners of similar vehicles to share their dealer experiences…its’ a powerful tool.
In most cases, when they realize that you’ve done you’re homework, the dealer and manufacturer will realize that they’re obligated to comply with the law.
For more information visit the SEMA website www.sema.org. SEMA is a trade organization of the automotive aftermarket, which has been active in protecting consumer rights.
NO. It's also illegal for a dealer to deny you the OE warranty because you have changed the exhaust system. This is an often asked question. But you will need to be armed with some basic information.
Under the Magnuson Moss Warranty Act of 1975, 15 USC, 2302 and Clean Air Act 42 of USA code 7541, you have rights.
This legislation basically states that:
In order for a dealer/manufacturer to deny a warranty on a claimed part, they must PROVE that the part YOU installed/had installed DIRECTLY caused the failure of the part on which you’re claiming the warranty.
What does this mean to you?
Let’s say you install a turbocharger to the engine. Could this void the transmission warranty? The axle warranty? The answer is “possibly,” as the increased stress to these components cause by the increased power output from the turbo could indeed cause your warranty to be denied.
What about a cat back exhaust system?
Since most high quality systems, at least those systems that are 50 state legal, are installed behind the catalytic converters, there should be no warranty concerns to other components, even emissions components. Most exhaust companies, including MagnaFlow, design their systems so that no modification is necessary to get the systems to fit. They will not trigger “check engine” lights unless there’s a leak in the system which almost always caused by an oversight during installation and they will not effect emissions. Remember: the engine creates the emissions, the exhaust system is the path from which they exit. A freer flowing exhaust will not do anything to inhibit emissions expulsion or to increase emissions output, all of which is controlled by engine management and the catalytic converter(s).
Any properly engineered exhaust system will not cause any failures of any other parts of the engine, suspension, chassis, transmission, electrical system, etc.
Of course, there’s a great deal to be said for the importance of having a qualified installer work on your vehicle. While MagnaFlow goes to great lengths to provide ample clearance of fuel lines, electric lines, brake lines, etc., like any part you’d install, if care is not exercised, there could be interference with equipment on the vehicle. That’s why we recommend using a MagnaFlow “Preferred” dealer to do your installation, unless you have at least some basic knowledge of working on vehicles.
In any case, the most important thing you need to know is that you need to be armed with this information. In many cases, dealers are just plain timid in doing repair work on vehicles that are even remotely different.
What to do if denied a warranty?
You MUST get the denial in writing and demand that they are very specific in why they’re denying the claim and in providing solid evidentiary proof in how the part you installed/had installed caused the failure for which they’re denying the warranty.
Next, contact the Regional Service Manager and of course, the manufacturer of your vehicle, mention the Magnuson Moss Warranty Act and document every word they say and retain copies of all paperwork. The problem is usually corrected here, as manufacturers know the law, dealers are just being cautions. Of course, some dealers are better than others and we’ve all had bad experiences. Use the internet chat rooms to seek out owners of similar vehicles to share their dealer experiences…its’ a powerful tool.
In most cases, when they realize that you’ve done you’re homework, the dealer and manufacturer will realize that they’re obligated to comply with the law.
For more information visit the SEMA website www.sema.org. SEMA is a trade organization of the automotive aftermarket, which has been active in protecting consumer rights.
The entire above post by magnaflow is summed up with that rule of thumb.
Are there exceptions? Yes... say you installed the autospring 2.5" spacer kit and, due to that install, the cv boots rip... that technically is not covered under the factory warranty. Did you change the boot or install new ones? No... but the spacers caused the angle and ultimately the tear.
Also there are exceptions the other way, although I am unable to come up with one off the top of my head.
As far as the muffler being an emissions device, the emissions system ends at the end of the cat pipe. The muffler is a noise suppression device, nothing more... hence the name... muffler.
Senior Member
Joined: Jun 2007
Posts: 190
Likes: 0
From: Horsham, PA
Originally Posted by 02XLT4X4
Noise emisions is regulated as well, just not enforced nearly as much as what is in the exhaust gasses.