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2003 Chevy Impala Catalytic Converter

20 Best 2003 Chevy Impala Catalytic Converter of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best 2003 Chevy Impala Catalytic Converter of 2023. Check our ranking below.

2,385 Reviews Scanned

Rank No. #1
PULCHERFLOW Catalytic Converter Fit for 2000-2005 Chevrolet Impala, Monte Carlo 3.4L V6, 1997-2005 Buick Century 3.1L V6 Catalytic Convertor High Performance (EPA Compliant)
  • VEHICLE FITMENT: Catalytic Convertor Fit for 1997-2005 Buick Century 3.1L V6, 2000-2005 Chevrolet Impala 3.4L V6, 2000-2005 Chevrolet Monte Carlo 3.4L V6, 1997-2003 Pontiac Grand Prix 3.1L V6 Interchange Part Number: 54757
  • Attention: 46-state Legal - NOT Legal for sale or Use in Ca, New York, Or Maine Emissions Models; CA, CO, NY or ME addresses are not available.
  • Direct Fit Design: Direct-Fit high flow catalytic converter is designed to meet or even exceed OE quality and performance standards. And all installation holes are firmly and exactly fixed with attached gaskets and hardware.
  • Higher Efficiency & Quality: Made of High Quality Stainless Steel with Computerized Mandrel-Bends for Strength and Durability. Highly resists heat, rust, and corrosion for longer service life, no worry about bending or melting.
  • EPA Certicified:Meets criteria specified by U.S. Environmental Protection Agency(EPA). Contains precious metals to reduce tailpipe emissions.
Rank No. #2
FortunaFlow Catalytic Converter Compatible with Chevy Impala/Chevry Monte Carlo 2000-2005 V6 3.4L,Pontiac Grand Prix 1997-2003 V6 3.1L(EPA Compliant high flow standard)
  • [Vehicle Fitment]Catalytic converter compatible with Chevy Impala 2000-2005 3.4L,Buick Century 1997-2005 3.1L,Monte Carlo 2000-2005 3.4L,Pontiac Grand Prix 1997-2003 3.1L,Reference Number: 642525,54626,50322A414,54757,20182,7713074,079-5157.
  • [Attention Before Purchase] 1.Not for sale in California,New York,Colorado and Maine.Cannot be shipped to CA, NY,COand ME addresses. 2.Please read the product description carefully to ensure that our product is compatible with your car.
  • [Solve Your Troubles] 1.It can eliminate the P0420,P0430 warning lights and effectively stabilize and reliably pass the OBD-II tests. 2.If you're not sure whether our products match your car or the Part fails please feel free to contact us.
  • [Direct Fit Design] The flange is precisely-built to meet standard OE specifications without extra modification, and all installation holes are firmly and exactly fixed with attached gaskets and hardware.
  • [High Structural Strength] Our catalytic converter is designed of high quality stainless steel durable.High precision CNC mig strong is welded structure,can withstand high temperature and pressure, extend service life without fear of bending or melting.
Rank No. #3
VAVICARS Catalytic Converter Stainless Steel Fit For Chevy Impala 2000-2005, Fit For Monte Carlo 2000-05 3.4L, Fit For Buick Century 1997-05, Fit For Pontiac Grand Prix 1997-03 3.1L V6 (EPA Approved)
  • 【Attention】Not legal for sale, installation or use on vehicles registered in the state of California, New York, Maine and and Colorado. Please check with your state authority for details before you buy
  • 【Fitment】Catalyst Fit For Chevy Impala 2000-2005, Fit For Chevy Monte Carlo 2000-2005 3.4L, Fit For Buick Century 1997-05, Fit For Pontiac Grand Prix 1997-03 3.1L V6 54626, 50322, 642525 (EPA Approved)
  • 【EPA Approved】Each of our convertor is certificated by EPA Federal standard and has an exclusive EPA number. For use WITH Federal Emissions models only
  • 【High Quality】Adopts heavy-duty 409L stainless steel shell that strong resistance to corrosion and high temperature, internal ceramic substrates contain ample metal catalysts that offers longer service life
  • 【Direct Fit】Use the original car mold to produce it and meet standard OE specifications without extra modification. Easy to install and highly fit. (Professional installation would be highly recommended)
SaleRank No. #4
A-Premium Catalytic Converter Kit Direct-Fit Compatible with Chevrolet Impala 2000-2005, Monte Carlo 2000-2005 & Buick Century 1997-2005 & Pontiac Grand Prix 1997-2003, 3.1L 3.4L, EPA Compliant
  • [Vehicle Fitment]: Compatible with Buick Century 1997-2005 V6 3.1L; Compatible with Chevrolet Impala 2000-2005 V6 3.4L, Monte Carlo 2000 V6 3.4L, Monte Carlo 2001 V6 3.4L (fits for LS model), Monte Carlo 2002-2005 V6 3.4L; Compatible with Pontiac Grand Prix 1997-2003 V6 3.1L
  • [Reference Number]: 642525, 54626, 50322
  • [Specification]: ① E.P.A. Compliant: Yes; ② Vehicle's Emissions Specifications: Federal Emissions; ③ Restricted States: CA, NY, CO, ME; ④ Body Material: Stainless Steel; ⑤ Inlet Type: 2 Bolt welded flange; ⑥ Outlet Type: 2 Bolt welded flange; ⑦ Mounting Hardware Included: Yes
  • [E.P.A Compliant]: EPA-compliant catalytic converters cannot be sold or installed in California and Colorado and, under certain circumstances, 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.
SaleRank No. #5
CIRconvert Catalytic Converter Compatible with Chevrolet Impala, Monte Carlo 2000 2001 2002 2003 2004 2005, Buick Regal 1997-2004 3.8L V6 Catalytic Convertor (EPA Compliant)
  • 1.VEHICLE FITMENT:【Superior】Catalytic Convertor Fit for Chevy Impala 2000-2005 3.8L V6, Chevy Monte Carlo 2000-2005 3.8L V6, Buick Regal 1997-2004 3.8L V6, Oldsmobile Intrigue 1998-1999 3.8L V6, Pontiac Grand Prix 1997-2003 3.8L V6, Interchange Part Number: 642583
  • 2.DIRECT-FIT DESIGN: Our products are manufactured using high-tech production techniques and high-strength stainless steel materials, making them rugged, durable, and heat-resistant. Our aim is to produce high-performance, high-quality, and high-end products
  • 3.ATTENTION: Our product can be used in 46 states but cannot be used or shipped to California, Colorado, New York, or Maine. Please take note before making a purchase
  • 4.HIGHER EFFICIENCY & QUALITY: Our products are manufactured using high-strength stainless steel and advanced laser cutting and welding technologies, which ensure high strength, heat resistance, and longevity. This advanced manufacturing technology results in an extended product lifespan
  • 5.EPA CERTIFIED: Complies with the regulations of the United States Environmental Protection Agency (EPA). The product contains rare and precious metals that reduce emissions, thereby protecting the vehicle's engine and the environment. We provide a 50,000-mile limited warranty for all our products

Last update on 2025-07-04 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 2003 Chevy Impala Catalytic Converter that you consider buying. Your questions might include the following:

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Romance University provides an 2003 Chevy Impala Catalytic Converter buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 2003 Chevy Impala Catalytic Converter currently available on the market.

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