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Catalytic Converter for 2003 Buick Regal

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EvanFischer 49-State Legal (No CA) OE Replacement Catalytic Converter

This EvanFischer 49-State Legal (No CA) Direct Fit Catalytic Converter is manufactured from high quality and durable stainless steel catalytic case, 16-gauge aluminized steel tubes, and heat shield for long lasting durability and better protection for your vehicle. 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!

EvanFischer also offers comprehensive manifold converter assemblies for newer vehicle models!

  • OBD-II And EPA compliant catalytic converter
  • Requires NO cutting or welding
  • Honeycomb catalyst with maximum surface area flow
  • 49-State Legal, not for sale or use in California; cannot be shipped to California addresses
  • 2-year or 25,000-mile EvanFischer warranty on converter and 5-year or 50,000-mile EvanFischer warranty on another components

EvanFischer Catalytic Converter, 49-state Legal - No CA Shipments, Direct Fit, Assembly
$150.25 List Price $177.30 Save $27.05 Availability: In Stock
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  • SKU#: REPP960301
  • 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 2003 Buick Regal submodels:
  • 6 Cyl 3.8L | GS, LS
Rating: (see review/s)

"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

"not a bad catalytic converter. Installed on my 2001 gtp. Great price!" posted by: on November 3, 2013 view all 7 reviews

49-state legal Eastern Direct Fit Catalytic Converter

Eastern 49-State Legal Direct Fit Catalytic Converters

  • NANO technology for better converter efficiency
  • Advanced materials design for optimum engine output and catalytic efficiency
  • Complete range of inlet and outlet diameters
Backed by 3 decades of product expertise, Eastern continues to invest in state-of-the-art production equipment to guarantee only the best for their customers - making them ready for the future.

Note:
  • 49-state legal; Not legal in California and other states adopting California Emissions Standards; Not for sale or use in California and other states adopting California Emissions Standards; Cannot be shipped to California and such states
Eastern Catalytic Converter, Eastern ECO GM, 49-state Legal - No CA Shipments, Direct Fit
$188.21 List Price $222.09 Save $33.88 Availability: In Stock
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  • SKU#: EAST50321
  • Quantity Sold: Assembly
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 37 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2003 Buick Regal submodels:
  • 6 Cyl 3.8L | GS, LS
Rating: (see review/s)

"NO more "Check Engine Light"and the car is performing like it should." posted by: Jimmy on August 13, 2011

"Excellent service from autoparts store, will use and buy again, the parts really solved my problem on my catalytic converter." posted by: Fred Pangilinan on September 9, 2008

Eastern Catalytic Converter, Eastern ECO GM, 49-state Legal - No CA Shipments, Direct Fit
$185.75 List Price $219.19 Save $33.44 Availability: In Stock
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  • SKU#: EAST50433
  • Quantity Sold: Assembly
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 16 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2003 Buick Regal submodels:
  • 6 Cyl 3.8L | GS

Eastern 49-state legal Universal Catalytic Converter

Eastern 49-State Legal Universal Catalytic Converters

  • NANO technology for better converter efficiency
  • Advanced materials design for optimum engine output and catalytic efficiency
  • Complete range of inlet and outlet diameters
  • Non-directional for ease of installation
Backed by 3 decades of product expertise, Eastern continues to invest in state-of-the-art production equipment to guarantee only the best for their customers - making them ready for the future.

Note:
  • 49-state legal; Not legal in California and other states adopting California Emissions Standards; Not for sale or use in California and other states adopting California Emissions Standards; Cannot be shipped to California and such states
Eastern Catalytic Converter, Eastern Standard, 49-state Legal - No CA Shipments, Minor Modifications
$95.18 List Price $112.31 Save $17.13 Availability: In Stock
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  • SKU#: EAST99176
  • Quantity Sold: 1 piece
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
Fits the following 2003 Buick Regal submodels:
  • 6 Cyl 3.8L | GS, LS

Magnaflow 49-State Legal Direct Fit Catalytic Converter

  • 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.

Magnaflow Catalytic Converter, Magnaflow 49-State Direct Fit, 49-state Legal - No CA Shipments, Direct Fit
$245.16 List Price $317.26 Save $72.10 Availability: In Stock
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  • SKU#: M6623405
  • Quantity Sold: Assembly
  • Tube Material: Stainless steel
  • EO Number: Not applicable
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Notes: Gaskets Included
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2003 Buick Regal submodels:
  • 6 Cyl 3.8L | GS, LS
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

Magnaflow Catalytic Converter, Magnaflow 49-State Direct Fit, Front, 49-state Legal - No CA Shipments
$245.16 List Price $317.26 Save $72.10 Availability: In Stock
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  • SKU#: M6623405
  • Product Fit: Direct fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless steel
  • EO Number: Not applicable
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Notes: Gaskets Included
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2003 Buick Regal submodels:
  • All Engines | All Submodels
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

Magnaflow 49-State Legal Semi-Universal Catalytic Converter

  • Not legal for use in California or in states adopting the California emissions standards
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • 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 semi-universal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

Magnaflow Catalytic Converter, Magnaflow 49-State Semi-Universal, 49-state Legal - No CA Shipments, Minor Modifications
$105.21 List Price $136.16 Save $30.95 Availability: In Stock
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  • SKU#: M6699306HM
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless steel
  • EO Number: Not applicable
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 11 in. L x 5.13 in. W, 15 in. overall length
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2003 Buick Regal submodels:
  • 6 Cyl 3.8L | GS, LS

More results for 2003 Buick Regal Catalytic Converter

MAGNAFLOW OEM GRADE (49-STATE LEGAL) SEMI-UNIVERSAL CATALYTIC CONVERTER
  • Not legal for use in California or in states adopting the California emissions standards
  • Designed for vehicles equipped with California emissions but not registered or driven in a state adopting... (see more)
MAGNAFLOW OEM GRADE (49-STATE LEGAL) DIRECT FIT CATALYTIC CONVERTER
  • Not legal for use in California or in states adopting the California emissions standards
  • Designed for vehicles equipped with California emissions but not registered or driven in a state adopting the... (see more)
CATCO CATALYTIC CONVERTER (49-STATE LEGAL - NO CA SHIPMENTS)

Catco catalytic converters are designed with 409 stainless steel pipes and shell that guarantee the customers of durability and longer life.

Note:

  • 49-state legal; Not for sale or use in California;... (see more)
DAVICO 49-STATE LEGAL - NO CA SHIPMENTS CATALYTIC CONVERTER

Davico Catalytic Converter

When it concerns choosing a solid brand name for your engine/exhaust system's catalytic converter, turn to Davico. Davico's line of original equipment quality replacement... (see more)

BENCHMARK 49-STATE LEGAL (NO CA) OE REPLACEMENT CATALYTIC CONVERTER

Benchmark catalytic converters are considered to be the industry's standard replacement catalytic converter. They are the recognized leading catalytic converters in terms of fitment and durability.... (see more)

BOSAL 49-STATE LEGAL - NO CA SHIPMENTS CATALYTIC CONVERTER

Bosal catalytic converters are made to fit vehicle-specific requirements for backpressure, emissions, sound levels, and sensors. They are designed and built for long life reliability.

Notes:

WALKER 49-STATE LEGAL - NO CA SHIPMENTS CATALYTIC CONVERTER

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... (see more)

WALKER CATALYTIC CONVERTER 49-STATE LEGAL

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.

... (see more)