Q: Will I Void My Warranty if I Change My Car's Exhaust System?

asked by on

Will I void my warranty if I change my car's exhaust system?

As a general rule of vehicle warranty, you cannot modify your vehicle’s exhaust system if it involves any smog-related component, such as catalytic converters, while your vehicle is still under an emissions warranty. Emissions warranties are valid for a longer period of time and for a higher amount of mileage than regular vehicle warranties. Replacing emission control devices with aftermarket upgrades, not service replacements, would void your manufacturer warranty and the cost of repairs would be your responsibility if something were to go wrong.

Some exhaust system components like headers and high-flow catalytic converters can be upgraded if the components have been tested, certified, and approved by the state for use as a replacement emissions control component. Keep in mind that doing so will invalidate the manufacturer’s warranty on those components. It you install these components after the emission control warranty for your vehicle has expired, then you don’t have to worry about voiding the warranty or not.

There are upgrades that you can do to your exhaust system that don’t interfere with emissions warranties. Generally, these upgrades to your exhaust system are referred to as "cat-back" systems because they replace the exhaust system from the back of the catalytic converter to the rear of the vehicle. The catalytic converter is not replaced in this situation.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Will I Void My Warranty if I Change My Car's Exhaust System?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Is the manifold gasket usually covered under the manufacturers warranty

Hey there. The intake gasket would need to be listed under the covered parts list of the warranty for your vehicle and engine. There has been many changes by the manufacturer of covered components and exclusions over the years and...

Q: Flex pipe

As I said before it can be replaced without replacing the entire converter assembly. If you google search the exhaust on your car you will see the flex pipe can be purchased separately. All you need to do is get...

Q: Does an Aftermarket Exhaust System Benefit My Car?

An aftermarket exhaust system MAY be of some benefit to your vehicle. One of the most restrictive and power-robbing systems on cars today is the exhaust system. Having a free-flowing exhaust system and being able to get all of the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...