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Chevy Impala Catalytic Converter

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$150.25 List Price $177.30 Save $27.05 Availability: In Stock
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EVANFISCHER DIRECT FIT CATALYTIC CONVERTER, NEW, 5-YEAR WARRANTY

This direct fit item is manufactured from high quality and durable stainless steel catalytic case and 16-gauge aluminized steel tubes for long lasting durability and for better protection. It also features honeycomb catalyst that has maximum surface area flow.

OBD-II and EPA compliant catalytic converter; It is a high quality aftermarket replacement for the OEM catalytic converter. Designed for easy installation - it requires no cutting or welding! This is manufactured in accordance to industry standards to ensure product durability and reliability; best of all, EvanFischer products are covered by 5-year or 50,000-mile limited warranty.

Specifications:

  • 1 oxygen sensor port
  • Round body

Includes:
  • All gaskets for ease of fitment
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: REPP960301
  • Brand: EvanFischer
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 37.63 in. overall length
  • Warranty: 5-year or 50,000-mile limited warranty
 
Fits the following Chevrolet Impala Years:
  • 2004-2005 | 6 Cyl 3.8L | SS
  • 2000-2005 | 6 Cyl 3.8L | Base, LS
(see more)
Rating: (see review/s)

"worked like it should car runs again. easy to install." posted by: jeff on April 6, 2014

"The part fit right to my car. However it did nothing to delete my code for a bad catalytic converter. After research I later learned that not all aftermarket cat converters will take away the check engine light because they do not meet OEM standards. I should have read that before buying the part. My fault." posted by: on January 3, 2014 view all 8 reviews

$67.28 List Price $79.39 Save $12.11 Availability: In Stock
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EASTERN CATALYTIC CONVERTER

Eastern catalytic converters are constructed using Eastern's proprietary NANO technology chemistry that yields highly efficient loadings for lower cost and better converter efficiency. It features high flow design that maximizes engine output and catalytic efficiency.

Specifications
  • 3-way catalyst style
  • 6,000 lbs. GVW
  • 2.25 in. inlet
  • 2.25 in. outlet
  • Single center inlet and outlet configuration
  • 10 in. L x 6 in. W x 4.25 in. H, 14 in. overall length
  • Oval casing
  • Without oxygen sensor port and air tube provision
  • Non-directional and can be installed either way
  • Modification of the exhaust is required
Note: Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: EAST83165
  • Brand: Eastern
  • Product Fit: Minor Modifications
  • Quantity Sold: 1 piece
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Dimensions: 10 in. L x 6 in. W x 4.25 in. H, 14 in. overall length
(see more)
Fits the following Chevrolet Impala Years:
  • 1994-1996 | 8 Cyl 5.7L | SS
Rating: (see review/s)

"This converter appears to be well built, and solved my P0240 (inefficient catalytic converter) code problem immediately. Can't beat the price and free, quick (3 days) shipping. If your existing front pipe is in good shape, this converter is well worth the hassle of adapting it to fit." posted by: Pistole on September 11, 2010

"this and all the parts i have ordered have been what i ordered, and have fit all apps. perfectly." posted by: texas t-bone on July 30, 2010 view all 4 reviews

$245.16 List Price $317.26 Save $72.10 Availability: In Stock
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  • Not legal for use in California or in states adopting the California emissions standards
  • Easy bolt-on Installation with no cutting, welding or bending required
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These 49-State Legal direct-fit catalytic converters are specifically designed to fit your vehicle with a no-hassle installation – no cutting, welding, or bending required.  Engineered to cut emissions and improve performance.

  • SKU#: M6623405
  • Brand: Magnaflow
  • Quantity Sold: Assembly
  • Tube Material: Stainless steel
  • EO Number: Not applicable
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
(see more)
Fits the following Chevrolet Impala Years:
  • 2004-2005 | 6 Cyl 3.8L | Base, LS, SS
  • 2000-2005 | 6 Cyl 3.8L | Base, LS
(see more)
Rating: (see review/s)

"Very happy it passed inspection! High quality converter.." posted by: Toca on October 22, 2013

"os,sensor not in corect position and not the correct mounting bracet" posted by: bluz on February 28, 2011 view all 3 reviews

$255.50 List Price $522.62 Save $267.12 Availability: In Stock
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CATCO CATALYTIC CONVERTER ASSEMBLY

Catco catalytic converters are designed with 409 stainless steel pipes and shell for longer life.

Specifications
  • 2-bolt welded flange inlet
  • 2-bolt welded flange outlet
  • With one oxygen sensor port
  • Standard assembly with one catalytic converter
  • Round body
  • 37.38 in. overall length
  • Single inlet and outlet configuration
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: CAT4876
  • Brand: Catco
  • Tube Material: Stainless steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 37.38 in. overall length
  • Warranty: 5-year or 50,000-mile Catco limited warranty
 
Fits the following Chevrolet Impala Years:
  • 2004-2005 | 6 Cyl 3.8L | SS
  • 2000-2005 | 6 Cyl 3.8L | Base, LS
(see more)
$197.95 List Price $545.93 Save $347.98 Availability: In Stock
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Davico Catalytic Converter

Davico Manufacturing is committed to producing hard to find and specialized exhaust parts for the customer's satisfaction. Its catalytic converter is an example of the company's outstanding dedication.

Davico Catalytic Converter's design enables the conversion of harmful compounds into less dangerous gasses to help in pollution control without reducing its efficiency. Designed for many makes and models, this converter is easy to install.

Specifications:

  • 3-way catalyst style
  • 37.25 in. L x 7.25 in. W x 13.5 in. H
  • Single inlet and outlet configuration
  • One catalytic converter
  • Ceramic honeycomb substrate material
  • Stainless steel case material
  • Aluminized steel tube material
  • 2 bolt-fixed flange inlet type
  • 2 bolt-fixed flange outlet type
  • With one oxygen sensor port
  • Includes gaskets: 24316 (1), 24731 (1)
  • Does not require cutting, sliding, clamping, or welding for installation
Note: Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: DAV16567
  • Brand: Davico
  • Quantity Sold: Assembly
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 2-3 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 37.25 in. L x 7.25 in. W x 13.5 in. H
(see more)
Fits the following Chevrolet Impala Years:
  • 2004 | 6 Cyl 3.8L | SS
  • 2000-2004 | 6 Cyl 3.8L | Base, LS
(see more)
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$99.05 List Price $154.00 Save $54.95 Availability: In Stock
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FLOWMASTER – DIRECT FIT 49-STATE LEGAL* CATALYTIC CONVERTERS

Flowmaster’s Direct Fit catalytic converter is dyno-proven to dramatically increase horsepower and reduce emissions better than your stock catalytic converter. It’s legal in 49 states and passes the federal EPA emissions standards – one of those ‘too good to be true’ must-have aftermarket products. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Street legal - complies with federal EPA emissions standards
  • 50,000-mile/5-year casing warranty and 25,000-mile emissions warranty
  • Proven to improve horsepower while reducing emissions at the same time
  • 100% welded stainless body means long-lasting durability
  • Direct fit by vehicle year, make and model
  • Quick and easy installation
  • Dyno-tested
  • Factory replacement part
  • Precious metals and oversized substrates mean fewer toxins leaving the tailpipes
  • Includes heat shield for added protection
  • SKU#: F132010001
  • Brand: Flowmaster
  • Fit Note: Sedan
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless steel
  • EO Number: N/A - 49 State Legal
  • Anticipated Ship Out Time: 2-3 business days
  • Catalyst Substrate Material: Ceramic
(see more)
Fits the following Chevrolet Impala Years:
  • 1983-1985 | 8 Cyl 5.0L | Base
  • 1983-1984 | 6 Cyl 3.8L | Base
(see more)
$375.50 List Price $1,255.00 Save $879.50 Availability: In Stock
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BENCHMARK CATALYTIC CONVERTER ASSEMBLY

Benchmark catalytic converters are considered to be the industry's standard replacement catalytic converter. It is the recognized leader in fitment and durability. It features perfect fit and repeatability and its performance results are continually monitored by Benchmark's internal emissions laboratory to insure quality loadings which eliminate OBDII issues caused by many universal catalysts.

Specifications
  • With oxygen sensor port
  • Standard assembly with one catalytic converter
Notes
  • Product legal for sale in California under Executive Order (EO) number D-193-89. Before purchasing this product, please check the Executive Order at www.arb.ca.gov to verify whether this product is allowed for installation on your specific vehicle application.
  • SKU#: BEN920182
  • Brand: Benchmark
  • Tube Material: Steel
  • EO Number: D-193-89
  • Anticipated Ship Out Time: 1-2 business days
  • Warranty: 5-year or 50,000-mile Benchmark limited warranty
 
Fits the following Chevrolet Impala Years:
  • 2001-2002 | 6 Cyl 3.4L | Base
$184.95 List Price $350.13 Save $165.18 Availability: In Stock
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Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: W0133-1925821
  • Brand: Bosal
  • Fit Note: This catalytic converter is NOT approved for sale or use in California.
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
 
Fits the following Chevrolet Impala Years:
  • 2000-2005 | 6 Cyl 3.4L | Base
$87.10 List Price $271.94 Save $184.84 Availability: In Stock
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WALKER CATALYTIC CONVERTER, UNIVERSAL

Walker catalytic converters feature OE style design and fit, thicker OE-quality flanges, oxygen sensor fittings, heat-shielded pipe, and structural brace for enhanced strength and durability.

Features
  • Higher loaded substrate
  • Easy bolt-on installation
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: WK15041
  • Brand: Walker
  • Tube Material: Stainless steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Dimensions: 18 in. overall length
  • Warranty: 5-year or 50,000-mile Walker limited warranty
 
Fits the following Chevrolet Impala Years:
  • 1981-1982 | 8 Cyl 5.7L | Base, Estate
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The catalytic converter of the Chevrolet Impala is a car part that became mandatory in the United States in 1975 with the help of the Clean Air Act. The main purpose of the converter is to reduce the amount of pollution emitted by the vehicle. Nowadays, it is illegal to remove the catalytic converter in your car, and the fine can amount to $10,000. However, if the converter is already damaged, replacing it with an EPA-certified replacement is permitted by the federal law. Although a used catalytic converter is a cheaper option, there's a possibility that it might not work properly. To avoid the inconvenience of a trial-and-error method when searching for a replacement, it is best to select a brand new converter that can be used for longer period of time.

Frequently Asked Questions

Ask APW
  • If a Chevrolet Impala is already misfiring, and the problem may link to the catalytic converter, what other parts have to be checked apart from the converter itself, and is there a way to ascertain the root cause?
    Answer: It's a good idea to check for other causes if the car misfires and not concentrate only on the catalytic converter. The easiest way to start is by checking the car's fuel level. Although it is often overlooked, a low fuel level can be a cause this problem. If that's cleared, then move on to the condition of the spark plug wires. An engine compression test can be performed to show the condition of the engine and its parts, including the spark plugs. A tool that can help out in the compression test is a leak-down tester. Finally, if all of these are good, head back to the catalytic converter, and diagnose its condition. It is best to consider a new replacement.
  • Is there a way to add exhaust pipes to a Chevrolet Impala's catalytic converter without removing the oxygen sensor that could turn-on the "check engine" light?
    Answer: Removing the oxygen sensors in front and at the back of a catalytic converter will definitely cause the "check engine" light to turn on. A spacer or an oxygen sensor simulator can be installed on the additional exhaust pipes to avoid the light to prompt on the dashboard. A spark plug non-fouler can also do the trick, but it requires a longer installation.
  • Which type of catalytic converter is best for a classic Chevrolet Impala, a two-way or three-way?
    Answer: If the Impala runs using a gasoline-fueled engine, select a three-way type catalytic converter. Remember that two-way converters work best for diesel engines. Plus, a three-way converter reduces nitrogen oxide to simply nitrogen and oxygen which is not done by a two-way catalytic converter.