A catalytic converter is part of a vehicle’s exhaust-emissions system. It helps reduce harmful pollutants by promoting chemical reactions in the exhaust. In the United States, federal emissions rules explain why converters are widespread: the EPA says they have been installed on most 1975-and-newer passenger cars and light-duty trucks. That is not the same as saying every car everywhere is legally required to have one.
What does a catalytic converter do?
A catalytic converter uses materials called catalysts to speed up chemical reactions in a vehicle’s exhaust. The catalysts help transform pollutants before the exhaust leaves the tailpipe; they are not consumed as reactants in those reactions.
What a three-way converter changes
A typical three-way catalytic system targets three pollutants: carbon monoxide, unburned hydrocarbons, and nitrogen oxides. The reactions convert them into products including carbon dioxide, nitrogen, and water. These are generally less harmful than the original pollutants in the context of tailpipe emissions, but that does not make exhaust harmless.
Older oxidation converters target hydrocarbons and carbon monoxide; three-way converters also address nitrogen oxides. The converter is only one part of the emissions system. Engine-control calibrations and other equipment also contribute, so a functioning converter alone does not guarantee that a vehicle meets emissions requirements.
Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →#1 Best Overall
- 【VEHICLE FITMENT】 Our Catalytic Convertor Fit for Ford Crown Victoria 2003-2011 4.6L V8, Lincoln Town Car 2003-2011 4.6L V8, Mercury Grand Marquis 2003-2011 4.6L V8, Mercury Marauder 2003-2004 4.6L V8 Passenger Side&driver Side
- 【DIRECT-FIT DESIGN】 Our Catalytic Converters are design-validated for assured fit.Made of high quality stainless steel material, sturdy, durable, high temperature resistant, and durability durable catalyst material.
- 【HIGH FLOW PERFORMANCE】 Our Catalytic Converters are precisely-built to meet OEM specifications and have EPA certification. High flow design to provide more oxygen to your engine for an increase in power and performance.
- 【ATTENTION】 This item can be used in most places except CA, CO, NY or ME. Not for Use in California, Maine, Colorado or New York Registered Vehicles, please confirm before purchase.
- 【EPA COMPLIANT】 The direct-fit catalytic converters are compliant with EPA Standards but not with CARB. ABYSMAUTO offers a 50,000 miles limited warranty, for any manufacturer defect.
Why does my car need a catalytic converter?
In the United States, the reason is vehicle-emissions regulation. The Clean Air Act gives the U.S. Environmental Protection Agency authority to set vehicle emissions standards. Vehicles and engines covered by those standards must receive a certificate of conformity before entering commerce, demonstrating compliance with applicable emissions requirements.
The policy is to limit pollution from motor vehicles and protect public health and air quality. As the EPA puts it in The Clean Air Act in a Nutshell: How It Works, “Congress designed the law to minimize pollution increases from growing numbers of motor vehicles.”
Rank #2
- [Vehicle Fitment]: Compatible with Ford Crown Victoria 2003-2011; Compatible with Lincoln Town Car 2003-2011; Compatible with Mercury Grand Marquis 2003-2011 --- V8 4.6L
- [Reference Number]: 54346, 30383, 19531, 3041302
- [Specification]: ① Position: Left; ② Body Material: Stainless Steel; ③ Overall Length (mm): 930; ④ Converter Body Length (mm): 113, 180; ⑤ Converter Body Width (mm): 147, 130; ⑥ Converter Body Height (mm): 103, 90; ⑦ Oxygen Sensor Port Quantity: 1; ⑧ E.P.A. Compliant: Yes; ⑨ Vehicle's Emissions Specifications: Federal Emissions; ⑩ Restricted States: CA, NY, CO, ME
- [E.P.A Compliant]: EPA-compliant catalytic converters cannot be sold or installed in California, Colorado, and in certain cases in Maine and New York. Check your vehicle's Emission Control Information Label and your state's aftermarket converter regulations to select the proper catalytic converter
- [Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted catalytic converter. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind
Are catalytic converters required by law on every car?
No single universal statement covers every car, country, vehicle class, model year, fuel, and set of emissions rules. The EPA’s September 2000 aftermarket-converter fact sheet says converters have been installed on most 1975-and-newer U.S. passenger cars and light-duty trucks. “Most” is not “all,” and that historical scope statement is not a current worldwide percentage.
Requirements depend on the vehicle and the jurisdiction. Some state and local areas also operate inspection-and-maintenance programs to identify high-emitting vehicles that may need repairs; inspection rules are not identical everywhere in the United States.
Rank #3
- [Vehicle Fitment-1]: Compatible with Cadillac 2009 6.0L; Compatible with Chevrolet Avalanche 2007-2008 5.3L 6.0L, Silverado 1500 2007-2008 4.3L 4.8L 5.3L, Silverado 1500 2007-2010 6.0L, Suburban 1500 2007-2008 5.3L 6.0L, Tahoe 2007-2008 4.8L 5.3L, Tahoe 2008-2009 6.0L
- [Vehicle Fitment-2]: Compatible with GMC Sierra 1500 2007-2008 4.3L 4.8L 5.3L, Sierra 1500 2007-2010 6.0L, Yukon 2007-2008 4.8L 5.3L, Yukon 2008-2009 6.0L, Yukon XL 1500 2007-2008 5.3L 6.0L
- [Reference Number]: 645459, 50450
- [Specification]: ① Condition: New; ② Body Material: Stainless Steel; ③ Overall Length (mm): 940; ④ Converter Body Length (mm): 160, 160; ⑤ Converter Body Width (mm): 130, 130; ⑥ Converter Body Height (mm): 90, 90; ⑦ Oxygen Sensor Port Quantity: 2; ⑧ E.P.A. Compliant: Yes; ⑨ Vehicle's Emissions Specifications: Federal Emissions; ⑩ Restricted States: CA, NY, CO, ME
- [E.P.A Compliant]: EPA-compliant catalytic converters cannot be sold or installed in California, Colorado, and in certain cases in Maine and New York. Check your vehicle's Emission Control Information Label and your state's aftermarket converter regulations to select the proper catalytic converter
Can I drive without a catalytic converter?
For a U.S. vehicle subject to federal emissions rules, the EPA says removing a converter without replacing it with an approved replacement is prohibited tampering under federal law. The EPA’s explanation says the prohibition applies to everyone, including vehicle owners. State and local requirements may also apply. The federal answer is therefore not to remove or bypass the device; if it is missing or needs replacement, use an appropriate compliant replacement for the vehicle.
What to know if your converter needs replacement
The EPA’s September 2000 fact sheet discusses replacement converters and emphasizes choosing one appropriate for the vehicle. Because that fact sheet is old, its detailed conditions should not be treated as a complete statement of current federal or state requirements.
Rank #4
- 【Attention】: This item is designed to meet EPA OBDII emission requirements.
- 【Fitment】Fit for Ford Crown Victoria 2003-2011. Lincoln Town Car 2003-2011.MERCURY Grand Marquis 2003-2011 4.6L. Interchanges with OE part 3W1Z-5E212-GB
- 【More Precious Metal Catalyst added】Add a Extra Precious Metal Catalyst that exceeds the requirements for EPA standards, which is the most important to improve catalyst efficiency and pass the Emission Test.
- 【Longer Service Life】We use the Best Quality Stainless Steel shell, OEM grade Honeycomb Ceramic Substrate, and More Precious metal Close to the Original Performance.
- 【Direct-fit Design】This item is Easy to install. We use 3D Scan Technology to Ensure the Installation Suitability. Direct-fit Design to fit your car to Ensure the part will fit like the Original equipment.
- Confirm that diagnosis points to the converter itself, rather than assuming any emissions warning means it has failed.
- Match the replacement to the vehicle’s year, make, model, engine, and emissions configuration.
- Check that the part is an approved, compliant replacement under applicable federal and state or local rules.
- Review the part’s warranty and installation terms. Replacing the converter by itself may not resolve an emissions problem caused by another part of the system.
What federal emissions warranty may apply?
The EPA’s FAQ describes federal emissions-control warranties for light-duty vehicles as including a performance warranty of two years or 24,000 miles and a design-and-defect warranty. It also says specified major emissions components, including catalytic converters, are covered for eight years or 80,000 miles, whichever comes first. These are federal warranty periods, not a guarantee that a particular repair will be covered: coverage depends on the vehicle, sale date, defect, and applicable warranty terms.
Quick Recap
Best Value
- 【Direct Replacement】: If your engine throws P0420 code, or your cat is stolen, then it is recommended to buy this kit to solve the problem. This catalytic converter can repair faults and noise, car exhaust can be purified. It meets or exceeds the oem standard, and has been tested in the factory, perfectly matched with the original car, and can be installed directly.
- 【High Quality】: The stainless steel body of high-quality aluminized pipes is not easy to rust, ensuring excellent oxygen storage capacity and long service life. The double-layer high temperature resistant ceramic carrier greatly increases the flow rate and surface area, thereby improving power and fuel economy. Replace with a new catalytic converter to provide you with excellent clean air performance, restore the quietness of the vehicle, and restore a good driving experience for you
- 【Specification】: 2.5" Inlet , 2.5" Outlet , 11" Overall Length.Please check whether your vehicle exhaust has the appropriate size before purchasing to make sure that the standard universal exhaust is suitable for your car
- 【Standards】: Our catalytic converters have strict production procedures and comply with EPA standards and Obd3 standards. However, due to the increased emission standards in California, Colorado, New York, and Maine, no sales were carried out in these states (friends in these states, please rest assured, we are developing)
- 【Buy With Confidence】：Our catalytic converter tube pipe assembly has a lifetime warranty. If the part fails or breaks, please contact us for replacement. Save hundreds of dollars off of dealer prices by purchasing this part and taking advantage of our warranty.Price concessions and guaranteed, no need to worry about quality problems
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitches
