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Catalytic Converter for 2003 Cadillac Seville

We have 8 Items In-stock. Select your vehicle's Submodel to continue.

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

This Evan Fischer 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!

Evan Fischer 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 Evan Fischer warranty on converter and 5-year or 50,000-mile Evan Fischer warranty on another components
Evan Fischer Catalytic Converter, Center, 49-state Legal - No CA Shipments, Direct Fit
$138.45 List Price $163.37 Save $24.92 Availability: In Stock
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  • SKU#: REPC960307
  • Quantity Sold: Assembly
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 18 in. overall length
  • Warranty: 5-year or 50,000-mile limited warranty
see more Fits the following 2003 Cadillac Seville submodels:
  • 8 Cyl 4.6L | STS, SLS

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, Center, 49-state Legal - No CA Shipments
$164.80 List Price $194.46 Save $29.66 Availability: In Stock
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  • SKU#: EAST50410
  • Product Fit: Direct fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
Fits the following 2003 Cadillac Seville submodels:
  • 8 Cyl 4.6L | STS, SLS
Rating: (see review/s)

"GOOD PRODUCT FOR THE MONEY,BUT COULD BE BETTER.HAD NO NUTS OR SCREWS THAT CAME WITH THE UNIT." posted by: Don on May 7, 2011

Magnaflow California Legal Semi-Universal Catalytic Converter

  • 50-State/California Legal
  • 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 semi-universal 50-State Legal 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 50-State Semi-Universal, 50-state Legal, Minor Modifications
$226.84 List Price $293.56 Save $66.72 Availability: In Stock
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  • SKU#: M6646009
  • Quantity Sold: Sold individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 13 in. overall length
  • EO Number: D-193-67, D-193-89
  • Warranty: Magnaflow 5 year / 50,000 Mile Warranty
see more Fits the following 2003 Cadillac Seville submodels:
  • 8 Cyl 4.6L | SLS, STS
Magnaflow Catalytic Converter, Magnaflow 50-State Semi-Universal, 50-state Legal, Minor Modifications
$226.84 List Price $293.56 Save $66.72 Availability: In Stock
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  • SKU#: M66448009
  • Quantity Sold: Sold individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 business days
  • EO Number: D-193-113
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
Fits the following 2003 Cadillac Seville submodels:
  • 8 Cyl 4.6L | SLS, STS

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 catalytic converter is specifically designed to work like the original unit that came installed on your motor vehicle as it was newly driven out from the manufacturing facility, consequently bestowing it with excellent fit and solid overall operation. So that they can reach original equipment quality, each and every Davico OE Replacement Catalytic Converter is crafted within strict standard.

Routine vehicular monitoring is needed for secure or more comfortable ride. Defective parts can either lessen the ride quality or impair the efficiency of your vehicle, leading to any of the following: inefficient gas mileage, inferior efficiency, or greater vulnerability to abrupt motor vehicle or hardware breakdown. Select Davico 49-State Legal (No CA) OE Replacement Catalytic Converter to fix your engine/exhaust system to its optimum shape.

Davico Catalytic Converter, Davico Exact Fit, Center, 49-state Legal - No CA Shipments
$167.84 List Price $409.13 Save $241.29 Availability: In Stock
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  • SKU#: DAV19030
  • Product Fit: Direct fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 22 in. L x 7 in. W x 4.25 in. H
  • Includes: Gasket(s): 24250 (1)
  • Warranty: 2-year or 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and welds
see more Fits the following 2003 Cadillac Seville submodels:
  • 8 Cyl 4.6L | SLS
Davico Catalytic Converter, Davico Ultra Load, Center, 49-state Legal - No CA Shipments
$330.81 List Price $390.36 Save $59.55 Availability: In Stock
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  • SKU#: DAV49030
  • Product Fit: Direct fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized steel
  • Anticipated Ship Out Time: 1-2 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Warranty: 2-year or 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and welds
see more Fits the following 2003 Cadillac Seville submodels:
  • 8 Cyl 4.6L | STS

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; Cannot be shipped to California addresses
Catco Catalytic Converter, Center, 49-state Legal - No CA Shipments, Direct Fit
$353.73 List Price $841.00 Save $487.27 Availability: In Stock
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  • SKU#: CAT9027
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 2-3 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 60 in. overall length
  • Warranty: 5-year or 50,000-mile Catco limited warranty
see more Fits the following 2003 Cadillac Seville submodels:
  • 8 Cyl 4.6L | SLS, STS

More results for 2003 Cadillac Seville Catalytic Converter

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)