2004 Chevrolet Impala Catalytic Converter
Your 2004 Chevrolet Impala might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Catalytic Converter product you desperately need.
We currently carry 17 Catalytic Converter products to choose from for your 2004 Chevrolet Impala, and our inventory prices range from as little as $221.99 up to $1,998.99.
On top of low prices, Advance Auto Parts offers 2 different trusted brands of Catalytic Converter products for the 2004 Chevrolet Impala. We only sell parts from trusted brands like Walker so that you can find quality parts you can count on.
Don’t take our word for it - check out customer ratings and reviews to buy with confidence. We have 163 reviews on our Catalytic Converter products for the 2004 Chevrolet Impala from previous customers.
Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Catalytic Converter stock in-person!
Catalytic Converter for Your 2004 Chevrolet Impala
Search through our amazing selection of Catalytic Converter products for your 2004 Chevrolet Impala to find exactly what you’re looking for. Compare prices and reviews to choose the best part for you.
-
Walker - EPA Ultra-Boxed Direct Fit Converter (Part No. 16536)
DescriptionWalker® an industry leader for import and domestic applications, offers Walker® Standard Direct Fit Catalytic Converters, available for Pre-OBDII (1995 and older) vehicles, engineered with a precise precious metal loading to provide the required reduction in tailpipe emissions, to meet EPA emissions requirements.
Product Features:- Designed for use on Pre-OBDII vehicles. (1995 and older)
- Flange to flange, direct fit design bolts to existing exhaust
- Features ample precious metal load & proprietary wash coat technology
- Stainless steel body with aluminized pipe and heat shields for durability
- Thick OE-style flanges, hangers and brackets for enhanced strength
- OE-style routing and hanger position for easy installation
- Meets EPA emissions requirements
- Not legal for sale in California
Read 1 review(s)Review snapshot ® by PowerReviews
-
Would buy one again.
Would buy one again.
Submitted 2018-01-02
By dennis
From undisclosed
Fit just like the original.
Bottom Line NULL
from $689.99
View Product -
Walker - Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed (Part No. 54627)
DescriptionDesigned to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.
Product Features:- EPA COMPLIANT -- For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA & CO. Legal in NY & ME on EPA Federal Emission Equipped Vehicles only. Consult your state's aftermarket converter regulations for details.
- DIRECT-FIT DESIGN -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn't require specialized fabrication and/or welding
- KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES -- OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
- STRONG AND DURABLE -- Features thick OE-style flanges, hangers and brackets for strength and durability
- OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
Read 3 review(s)Review snapshot ® by PowerReviews
-
I will purchase in the future online and in store
I will purchase in the future online and in store
Submitted 2018-03-14
By John
From undisclosed
The product was fine, as expected and the ease of online purchase and store pick up was very helpful.
Bottom Line NULL
-
I always buy walker
I always buy walker
Submitted 2017-12-16
By Allon
From undisclosed
Perfect fit
Bottom Line NULL
-
I would buy this product again
I would buy this product again
Submitted 2017-12-15
By James
From undisclosed
Fit great
Bottom Line NULL
from $572.99
View Product -
Walker - Catalytic Converter- EPA Ultra, Universal/ Fabrication Needed (Part No. 93253)
DescriptionDesigned to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker® Ultra® Universal Catalytic Converters are available for import and domestic OBDII (1996 and newer) vehicles.
Product Features:- EPA COMPLIANT -- For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA & CO. Legal in NY & ME on EPA Federal Emission Equipped Vehicles only. Consult your state's aftermarket converter regulations for details.
- KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES -- OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
- DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
- OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
Read 3 review(s)Review snapshot ® by PowerReviews
-
Yes
Yes
Submitted 2019-12-12
By Muhmmad
From Undisclosed
Yes
Bottom Line NULL
-
Inexpensive quality replacement.
Inexpensive quality replacement.
Submitted 2018-12-30
By Michael
From Undisclosed
Good product but very little room for error when cutting off old catalytic converter and matching up to new.
Bottom Line NULL
-
Great Deal!
Great Deal!
Submitted 2018-10-14
By Matthew
From Undisclosed
Great product
Bottom Line NULL
from $237.99
View Product -
Walker - Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed (Part No. 54626)
DescriptionDesigned to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.
Product Features:- EPA COMPLIANT -- For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA & CO. Legal in NY & ME on EPA Federal Emission Equipped Vehicles only. Consult your state's aftermarket converter regulations for details.
- DIRECT-FIT DESIGN -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn't require specialized fabrication and/or welding
- KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES -- OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
- STRONG AND DURABLE -- Features thick OE-style flanges, hangers and brackets for strength and durability
- OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
Read 3 review(s)Review snapshot ® by PowerReviews
-
I would recommend this product to a friend.
I would recommend this product to a friend.
Submitted 2017-04-02
By Jim
From undisclosed
I used this converter on my wife's car. It fit great and went in very easy. This product was manufactured very well. The welds looked very clean with no undercut or burn through.
Bottom Line NULL
-
Perfect Fit
Perfect Fit
Submitted 2013-03-18
By Bob
From Plainville, CT
Easy to install and pipes all line up perfectly.
Bottom Line recommended
-
Perfect Fit Exhaust system!
Perfect Fit Exhaust system!
Submitted 2013-03-13
By The Butcher
From Ft.Myers,Florida
I bought the "complete" system....The direct fit Cat.converter,resonator,exhaust pipe,muffler,Steel O-ring gasket between exhaust manifold and Cat.and gasket between Cat. and resonator.ALL WALKER PARTS!It fit perfect!Vey easy to install!Used a Saws-all to remove old system.Recommend spraying the stud nuts first to give it time to work!
Bottom Line recommended
from $601.99
View Product -
MagnaFlow - Direct Fit Catalytic Converter: No Fabrication Needed, EPA Compliance (Part No. 23405)
DescriptionKeep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23405. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2000-2005 Chevrolet Impala, 1997-2004 Buick Regal, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.Read 3 review(s)Review snapshot ® by PowerReviews
-
Good product, fit well
Good product, fit well
Submitted 2013-12-28
By Otis
From South Korea
This product fit perfectly and sounds great. Even though it came with gaskets, I ordered some different ones as they were a better quality. it has a stainless steel construction so it should last a very long time. Shipping was also fast, I received it in about 8 days oversea. The product was packaged well and I received it with no damage. Advance Auto Parts is one of the few companies that will send to a APO address. I also liked where the oxygen sensor bung is placed on the side instead of on top of the pipe.
Bottom Line recommended
-
works great
works great
Submitted 2013-07-19
By Chevy Ed
From Lisbon Ohio
Hey it works great
Bottom Line recommended
-
I wll recomend this store to my friends
I wll recomend this store to my friends
Submitted 2013-05-27
By Eliet
From Hartford ,Ct
This is the parfect part for my veichle
Bottom Line recommended
from $551.99
View Product -
-
MagnaFlow - Universal Catalytic Converter : Fabrication Needed; 2.5 " Inlet /, 2.5 " Outlet, EPA Compliance (Part No. 51206)
DescriptionMagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.from $241.99
View Product -
Walker - EPA Ultra-Boxed Direct Fit Converter (Part No. 16537)
DescriptionWalker® an industry leader for import and domestic applications, offers Walker® Standard Direct Fit Catalytic Converters, available for Pre-OBDII (1995 and older) vehicles, engineered with a precise precious metal loading to provide the required reduction in tailpipe emissions, to meet EPA emissions requirements.
Product Features:- Designed for use on Pre-OBDII vehicles. (1995 and older)
- Flange to flange, direct fit design bolts to existing exhaust
- Features ample precious metal load & proprietary wash coat technology
- Stainless steel body with aluminized pipe and heat shields for durability
- Thick OE-style flanges, hangers and brackets for enhanced strength
- OE-style routing and hanger position for easy installation
- Meets EPA emissions requirements
- Not legal for sale in California
from $697.99
View Product -
MagnaFlow - Universal Catalytic Converter: Fabrication Needed; 2.25 " Inlet /, 2.5 " Outlet, EPA Compliance (Part No. 99206HM)
DescriptionMagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99206HM helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.from $221.99
View Product -
Walker - CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed (Part No. 84513)
DescriptionDesigned, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.
Product Features:- CARB COMPLIANT -- For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO & other states requiring CARB-compliant replacement converters. Consult your state's aftermarket converter regulations.
- SUPERIOR TECHNOLOGY -- Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE -- Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
from $1731.99
View Product -
Walker - CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed (Part No. 84597)
DescriptionDesigned, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Direct-Fit Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles and delivers a precise OE-style fit.
Product Features:- CARB COMPLIANT -- For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO & other states requiring CARB-compliant replacement converters. Consult your state's aftermarket converter regulations.
- DIRECT-FIT DESIGN -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn't require specialized fabrication or welding
- SUPERIOR TECHNOLOGY -- Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE -- Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- STRONG AND DURABLE -- Features thick OE-style flanges, hangers and brackets for strength and stainless-steel body with aluminized pipe and heat shields for durability
from $1998.99
View Product -
MagnaFlow - Direct Fit Catalytic Converter: No Fabrication Needed, CARB Compliant (Part No. 5461532)
DescriptionKeep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5461532. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2004-2005 Chevrolet Impala and 2004-2005 Chevrolet Monte Carlo. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.from $1914.99
View Product -
Walker - Catalytic Converter- EPA Ultra EX, Direct Replacement, No Fabrication Needed (Part No. 54758)
DescriptionDesigned to comply with EPA emissions requirements while delivering premium performance and durability for highly sensitive OBII applications, Walker® Ultra® EX Direct-Fit Catalytic Converters are available for OBDII (1996 and newer) vehicles.
Product Features:- EPA COMPLIANT -- For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA & CO. Legal in NY & ME on EPA Federal Emission Equipped Vehicles only. Consult your state's aftermarket converter regulations for details.
- DIRECT-FIT DESIGN -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn't require specialized fabrication and/or welding
- KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES -- OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions for highly sensitive OBII applications
- STRONG AND DURABLE -- Features thick OE-style flanges, hangers and brackets for strength and durability
- OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
from $1861.99
View Product -
MagnaFlow - Direct Fit Catalytic Converter: No Fabrication Needed, CARB Compliant (Part No. 5461396)
DescriptionKeep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5461396. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2004-2005 Chevrolet Impala, 2004-2005 Chevrolet Monte Carlo, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.from $1841.99
View Product -
Walker - CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed (Part No. 84502)
DescriptionDesigned, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.
Product Features:- CARB COMPLIANT -- For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO & other states requiring CARB-compliant replacement converters. Consult your state's aftermarket converter regulations.
- SUPERIOR TECHNOLOGY -- Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE -- Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
from $1658.99
View Product -
Walker - CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed (Part No. 82618)
DescriptionDesigned, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.
Product Features:- CARB COMPLIANT -- For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO & other states requiring CARB-compliant replacement converters. Consult your state's aftermarket converter regulations.
- SUPERIOR TECHNOLOGY -- Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE -- Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
from $861.99
View Product -
MagnaFlow - Direct Fit Catalytic Converter: No Fabrication Needed, EPA Compliance (Part No. 51396)
DescriptionKeep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51396. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2000-2005 Chevrolet Impala, 1997-2004 Buick Regal, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.from $651.99
View Product -
MagnaFlow - Direct Fit Catalytic Converter: No Fabrication Needed, EPA Compliance (Part No. 51532)
DescriptionKeep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51532. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2001-2005 Chevrolet Impala, 2001-2005 Buick Century, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.from $631.99
View Product
FAQs for 2004 Chevrolet Impala Catalytic Converter Products
What are the most popular Catalytic Converter products for the 2004 Chevrolet Impala?
Our most popular Catalytic Converter products for the 2004 Chevrolet Impala are:What are the best aftermarket Catalytic Converter products for the 2004 Chevrolet Impala?
See what past customers had to say about our highest-rated Catalytic Converter products for the 2004 Chevrolet Impala: