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Catalytic Converter for 2004 Kia Optima

We have 66 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, Front, 49-State Legal - No CA Shipments, Direct Fit
$163.12 List Price $192.48 Save $29.36 Availability: In Stock
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  • SKU#: REPH960308
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 8.25 in. overall length
  • Warranty: 5-year or 50,000-mile limited warranty
see more Fits the following 2004 Kia Optima submodels:
  • 4 Cyl 2.4L | LX, EX
Rating: (see review/s)

"I was very pleased with my cat conv. also the customer service was excellent. I will definitely come back to this site when I need more parts." posted by: Viejito on November 12, 2014 view all 2 reviews

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 ECO II, Rear, 49-State Legal - No CA Shipments
$66.66 List Price $78.66 Save $12.00 Availability: In Stock
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  • SKU#: EAST83164
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Replaces OE Number: F7DZ5F250SA
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Kia Optima submodels:
  • 4 Cyl 2.4L | LX, EX
Rating: (see review/s)

"This product fixed my truck. I had many problem with bogging down and exhaust but now the problem is fixed thanks a lot." posted by: Garad on March 12, 2014 view all 3 reviews

Eastern Catalytic Converter, Eastern Standard, Rear, 49-State Legal - No CA Shipments
$51.85 List Price $61.18 Save $9.33 Availability: In Stock
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  • SKU#: EAST71316
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 6 x 4.25 x 12 in., 16 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Kia Optima submodels:
  • 6 Cyl 2.7L | LX, EX

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 II, Front, 49-State Legal - No CA Shipments
$206.43 List Price $243.59 Save $37.16 Availability: In Stock
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  • SKU#: EAST40516
  • 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: 8.25 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Kia Optima submodels:
  • 4 Cyl 2.4L | LX, EX
Rating: (see review/s)

"my mechanic thought this product was great...arrived in 4 days .... ready for installation" posted by: akize on February 7, 2012 view all 4 reviews

Eastern Catalytic Converter, Eastern Standard, Rear, 49-State Legal - No CA Shipments
$232.44 List Price $274.28 Save $41.84 Availability: In Stock
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  • SKU#: EAST40404
  • 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: 48 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Kia Optima submodels:
  • 4 Cyl 2.4L | LX, EX
Eastern Catalytic Converter, Eastern Standard, Center, 49-State Legal - No CA Shipments
$316.51 List Price $373.48 Save $56.97 Availability: In Stock
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  • SKU#: EAST40858
  • 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: 5-year or 50,000-mile Eastern limited warranty
see more Fits the following 2004 Kia Optima submodels:
  • 6 Cyl 2.7L | LX, EX

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, Rear, 49-State Legal - No CA Shipments
$108.98 List Price $141.03 Save $32.05 Availability: In Stock
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  • SKU#: M6699004HM
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 12 in. L x 6.5 in. W, 16 in. overall length
  • EO Number: Not applicable
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Kia Optima submodels:
  • 4 Cyl 2.4L | LX, EX
  • 6 Cyl 2.7L | LX, EX
Rating: (see review/s)

"It was easy for the installer to install. Did not affect the Oxygen Sensor, and now I got super great mileage, from less than 20 mpg, I now get 26.5 mpg." posted by: Gil on March 15, 2010

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
$363.68 List Price $470.65 Save $106.97 Availability: In Stock
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  • SKU#: M6626212
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • EO Number: Not applicable
  • Notes: Gaskets Included
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Kia Optima submodels:
  • 6 Cyl 2.7L | LX, EX
Magnaflow Catalytic Converter, Magnaflow 49-State Direct Fit, Rear, 49-State Legal - No CA Shipments
See Special Price List Price $400.74
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  • SKU#: M6693192
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 48.74 in. overall length
  • EO Number: Not applicable
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Kia Optima submodels:
  • 4 Cyl 2.4L | LX, EX

Special Price from

When a manufacturer implements a Minimum Advertised Price (MAP) policy, they create limits on the list price that retailers are allowed to advertise their products for.

In line with our efforts to continually provide the lowest possible price, we've made it easier for you to inquire about our Exclusive Pricing on these MAP items.

Magnaflow Catalytic Converter, Magnaflow 49-State Direct Fit, Rear, 49-State Legal - no CA shipments

  • List Price: $400.74
  • You Save: $291.95
  • Shipping: FREE
  • Our Price: $108.79
  • Low Price Guarantee

Magnaflow Catalytic Converter, Magnaflow 49-State Direct Fit, Front, 49-State Legal - No CA Shipments
$400.58 List Price $518.40 Save $117.82 Availability: In Stock
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  • SKU#: M6650216
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Catalytic Converter Type: Catalytic Converter with Exhaust Manifold
  • EO Number: Not applicable
  • Notes: Gaskets Included; Exhaust Manifold with Integrated Catalytic Converter Federal (Exc.CA)
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
see more Fits the following 2004 Kia Optima submodels:
  • 6 Cyl 2.7L | LX, EX

More results for 2004 Kia Optima Catalytic Converter

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)
MAGNAFLOW CALIFORNIA LEGAL DIRECT-FIT CATALYTIC CONVERTERS
  • California/50-State Legal
  • Easy bolt-on Installation with no cutting, welding or bending required
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic,... (see more)
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 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,... (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)

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)
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 50-STATE LEGAL 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)

PACESETTER PERFORMANCE - CATALYTIC CONVERTERS
PACESETTER - CATALYTIC CONVERTERS

Replace your sub-par stock converter with a higher performing catalytic converter by Pacesetter Performance. Their converters are fabricated from the finest... (see more)