2004 Kia Optima Catalytic Converters & Components

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    • Walker® Replacement Exhaust Kit
      (0 reviews)
      # 115294054
      Kia Optima 2004, Replacement Exhaust Kit by Walker®. Outlet Quantity: 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete...
      $53.05 - $328.33
    • Dorman® Exhaust Manifold with Integrated Catalytic Converter
      (0 reviews)
      # 62543405
      Kia Optima 2.7L 2004, Exhaust Manifold with Integrated Catalytic Converter by Dorman®. Shape: Round; Material: Cast Iron; Package Quantity: 1; Package Type: Box. More like a complete kit than a single part, many of the Exhaust...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking
      $303.10 - $404.78
    • Bosal® Direct Fit Manifold with Integrated Catalytic Converter
      (0 reviews)
      # 72352313
      Kia Optima 2.7L 2004, Direct Fit Manifold with Integrated Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: No. Includes: Two O2 Sensor Ports. If you’re in need of a replacement catalytic...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $308.97
    • Walker® CalCat™ Round Direct Fit Catalytic Converter
      (0 reviews)
      # 88066347
      Kia Optima 2.4L 2004, CalCat™ Stainless Steel Direct Fit Catalytic Converter by Walker®. Location: Front. Includes: Warranty Card. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: CARB...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $286.78
    • Walker® CalCat™ Small Oval Universal Fit Catalytic Converter
      (0 reviews)
      # 88066348
      Kia Optima 2.4L 2004, CalCat™ Stainless Steel Universal Fit Catalytic Converter by Walker®. Location: Rear. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: CARB Compliant. Converter...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $125.84
    • Walker® Ultra™ Direct Fit Catalytic Converter
      (0 reviews)
      # 8740018
      Kia Optima 2004, Ultra™ Stainless Steel Direct Fit Catalytic Converter by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: EPA Compliant. Converter Configuration: Direct-Fit....
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $196.16 - $328.33
    • Walker® Ultra™ Universal Fit Catalytic Converter
      (0 reviews)
      # 87067438
      Kia Optima 2004, Ultra™ Stainless Steel Universal Fit Catalytic Converter by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: EPA Compliant. Converter Configuration: Universal...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $82.85 - $105.95
    • Bosal® Direct Fit Catalytic Converter
      (0 reviews)
      # 72352312
      Kia Optima 2004, Direct Fit Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: No. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $226.56 - $294.32
    • Bosal® Direct Fit Catalytic Converter
      (0 reviews)
      # 20570063
      Kia Optima 2.4L 2004, Direct Fit Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: Yes. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $272.03 - $307.99
    • Bosal® Direct Fit Premium Load Front Catalytic Converter
      (0 reviews)
      # 20567594
      Kia Optima 2.4L 2004, Direct Fit Premium Load Front Catalytic Converter by Bosal®. Location: Front. Converter Configuration: Direct Fit. Catalytic Series: Premium Load. CARB Compliant: No. Includes: O2 Sensor Port. If you’re in...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $226.55
    • Eastern® ECO CARB Direct Fit Catalytic Converter
      (0 reviews)
      # 88869089
      Kia Optima 2004, Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: Yes. With One Outlet Gasket. If you need to...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $250.30 - $294.93
    • Eastern® ECO II Direct Fit Front Catalytic Converter
      (0 reviews)
      # 17573824
      Kia Optima 2.4L 2004, Front Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Rear....
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $210.57
    • Eastern® ECO II Universal Fit Rear Oval Catalytic Converter
      (0 reviews)
      # 100277957
      Kia Optima 2.4L 2004, Rear Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 2". Outlet Diameter: 2". CARB...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $64.60
    • Eastern® Standard Direct Fit Rear Catalytic Converter
      (0 reviews)
      # 111776475
      Kia Optima 2004, Rear Catalytic Converter by Eastern®. Catalytic Series: Standard. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Catalytic Converter Overall Length:...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $231.85 - $347.37
    • Eastern® Standard Universal Fit Rear Oval Catalytic Converter
      (0 reviews)
      # 100278189
      Kia Optima 2.7L 2004, Rear Catalytic Converter by Eastern®. Catalytic Series: Standard. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 2". Outlet Diameter: 2". CARB...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $45.48
    • DEC® Catalytic Converter and Pipe Assembly
      (0 reviews)
      # 86066572
      Kia Optima 2.4L 2004, Catalytic Converter and Pipe Assembly by DEC®. Engine pipe with converter. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic...
      Direct fitMade from a heavy duty stainless steel outer shell
      $264.60
    • DEC® Direct Fit Catalytic Converter
      (1 reviews)
      # 81060394
      Kia Optima 2004, Direct Fit Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy duty stainless...
      Direct fitMade from a heavy duty stainless steel outer shell
      $212.40 - $518.00
    • DEC® Undercar Direct Fit Catalytic Converter
      (0 reviews)
      # 86066573
      Kia Optima 2.7L 2004, Undercar Direct Fit Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy...
      Direct fitMade from a heavy duty stainless steel outer shell
      $324.80
    • AP Exhaust® Direct Fit Catalytic Converter
      (0 reviews)
      # 81398280
      Kia Optima 2.7L with Curved Converter Outlet / with Curved Outlet CARB Compliant / EPA Compliant 2004, Direct Fit Catalytic Converter by AP Exhaust®. Includes Integrated Exhaust Manifold. The growing concern for the environment...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $331.44 - $365.23
    • AP Exhaust® Direct Fit Catalytic Converter
      (0 reviews)
      # 80142268
      Kia Optima 2.4L CARB Compliant / EPA Compliant 2004, Direct Fit Catalytic Converter by AP Exhaust®. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts and...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $224.97 - $270.05
    • Davico® Direct Fit Catalytic Converter
      (0 reviews)
      # 83039169
      Kia Optima 2004, Direct Fit Catalytic Converter by Davico®. EPA Compliant. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $234.90 - $389.48
    • Victor Reinz® Catalytic Converter Gasket
      (0 reviews)
      # 24160219
      Kia Optima 2004, Catalytic Converter Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before...
      $3.88 - $11.26
    • Genuine® Catalytic Converter Gasket
      (0 reviews)
      # 8798513
      Kia Optima 2.4L 2004, Catalytic Converter Gasket by Genuine®. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for safety and legal reasons, but before you...
      $26.43
    • MagnaFlow® Direct Fit California Catalytic Converter with Header
      (0 reviews)
      # 66580320
      Kia Optima 2.7L 2004, Direct Fit California Catalytic Converter with Header by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Location: Front. CARB Compliant: Yes. Converter...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $529.74 - $530.26
    • MagnaFlow® Direct Fit California OBDII Catalytic Converter
      (0 reviews)
      # 62247165
      Kia Optima with LEV1 LEV Specification 2004, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. Catalytic Series: OBDII. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $407.92 - $527.72
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter
      (0 reviews)
      # 61589116
      Kia Optima 2004, Direct Fit Federal OEM Grade Catalytic Converter by MagnaFlow®. Catalytic Series: OEM Grade. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $339.30 - $468.89
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter with Header
      (0 reviews)
      # 61589118
      Kia Optima 2.7L 2004, Direct Fit Federal OEM Grade Catalytic Converter with Header by MagnaFlow®. Catalytic Series: OEM Grade. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $459.75 - $471.43
    • MagnaFlow® Direct Fit Federal Standard Catalytic Converter
      (0 reviews)
      # 61589117
      Kia Optima 2004, Direct Fit Federal Standard Catalytic Converter by MagnaFlow®. Catalytic Series: Standard. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $260.85 - $374.60
    • MagnaFlow® Direct Fit Federal Standard Catalytic Converter with Header
      (0 reviews)
      # 61589119
      Kia Optima 2.7L 2004, Direct Fit Federal Standard Catalytic Converter with Header by MagnaFlow®. Catalytic Series: Standard. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $400.94 - $412.59
    • Eastern® ECO GM Universal Fit Large Round Catalytic Converter
      (0 reviews)
      # 100278342
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO GM. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Catalytic Converter Body Length: 12"....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $83.88 - $88.68
    • Eastern® ECO III Universal Fit Center Round Catalytic Converter (92625)
      (0 reviews)
      # mpn2028122694
      Universal Fit Center Catalytic Converter by Eastern®. Catalytic Series: ECO III. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Center....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $92.15
    • Eastern® ECO II Universal Fit Oval Catalytic Converter
      (0 reviews)
      # 100278495
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Without Inlet Gasket. Without Outlet Gasket....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $66.23 - $87.13
    • Vibrant Performance® GESI® High Output Catalytic Converters
      (0 reviews)
      # 78902206
      Universal GESI® High Output Catalytic Converters by Vibrant Performance®. Vibrant Performance and Global Emissions Systems Inc. (GESi®) have teamed up to supply a series of OBD2 (1996 and newer) high flow Catalytic Converters...
      EPA certified for use on OBD2 vehicles (1996 and newer) in jurisdictionswhere the installation of Universal Catalytic Converters is still permitted
      $335.21 - $448.35
    • Vibrant Performance® High Output Catalytic Converters
      (0 reviews)
      # 78902217
      Universal High Output Catalytic Converters by Vibrant Performance®. Vibrant Performance Metal or Ceramic Core Catalytic Converters are made entirely of Stainless Steel and feature a Monolith that is far more durable and capable...
      T304 Stainless Steel ConstructionThese Converters are covered by a 5 year / 50,000 mile warranty
      $75.76 - $109.10
    • Stainless Works® 304 SS High-Flow Catalytic Converter
      (0 reviews)
      # 83115043
      Universal 304 SS High-Flow Catalytic Converter by Stainless Works®. CARB Compliant: No. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $184.50
    • Dynatech® PowerCat Stainless Steel Catalytic Converter
      (0 reviews)
      # 84198005
      Universal PowerCat Stainless Steel Catalytic Converter by Dynatech®. 1 Piece. The Dynatech PowerCAT catalytic convertor uses the latest technology in catalytic convertor design. Utilizing a Premium Metallic Substrate internal...
      Premium metallic substrateSuperior strength and durability
      $174.99
    • Thunderbolt® Car Diesel Catalytic Converter
      (1 reviews)
      # 82989181
      Universal Car Diesel Catalytic Converter by Thunderbolt®. 4" Round x 11" Long. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance exhaust...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $79.39
    • Thunderbolt® Oval Catalytic Converter
      (1 reviews)
      # 82989467
      Universal Oval Catalytic Converter by Thunderbolt®. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance exhaust products also help your...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $39.69 - $76.06
    • Thunderbolt® The Spun Formed Catalytic Converter
      (0 reviews)
      # 82989388
      Universal The Spun Formed Catalytic Converter by Thunderbolt®. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance exhaust products also...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $44.46 - $76.22
    • Thunderbolt® Truck Diesel Catalytic Converter
      (0 reviews)
      # 82989593
      Universal Truck Diesel Catalytic Converter by Thunderbolt®. 6" Round x 12" Long. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $183.83
    • Vibrant Performance® GM Style Spring Bolt Kit
      (0 reviews)
      # 78902214
      Universal GM Style Spring Bolt Kit by Vibrant Performance®. A simple solution for a common problem.
      Made of High Quality MaterialsAvailable in different sizes
      $8.25 - $12.10
    • MagnaFlow® Direct Fit California Catalytic Converter
      (0 reviews)
      # 98136417
      Kia Optima 2004, Direct Fit California Catalytic Converter by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: Yes. Converter Configuration: Direct-Fit....
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $436.61 - $527.72
    • Eastern® ECO CARB Pre-OBDII Universal Fit Center Round Catalytic Converter (861005)
      (0 reviews)
      # mpn1206811
      Universal Fit Center Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 2.5". Outlet Diameter: 2.5". CARB...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $177.86
    • Eastern® ECO GM II Universal Fit Large Round Catalytic Converter
      (0 reviews)
      # 100278338
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO GM II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Rear. CARB...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $88.68
    • Eastern® ECO II Universal Fit Bullet Catalytic Converter
      (0 reviews)
      # 100278349
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Without Inlet Gasket. Without Outlet Gasket....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $66.16 - $80.86
    • Eastern® ECO II Universal Fit Large Oval Catalytic Converter
      (0 reviews)
      # 100278475
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Without Inlet Gasket. Without Outlet Gasket....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $87.35 - $121.58
    • Eastern® ECO II Universal Fit Large Round Catalytic Converter
      (0 reviews)
      # 100278490
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Rear. CARB...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $69.40 - $72.55
    • Eastern® ECO II Universal Fit Resonated Oval Catalytic Converter
      (0 reviews)
      # 100278528
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Rear. CARB...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $87.13 - $88.45
    • Eastern® Performance Universal Fit Bullet Catalytic Converter
      (0 reviews)
      # 100278554
      Universal Fit Catalytic Converter by Eastern®. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Without Inlet Gasket. Without Outlet Gasket. Without Oxygen Sensor...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $65.65 - $119.05
    • Eastern® Performance Universal Fit Large Oval Catalytic Converter
      (0 reviews)
      # 100278565
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: Performance. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Catalytic Converter Body Length: 12"....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $87.79 - $116.23
    • Eastern® Standard Universal Fit Large Oval Catalytic Converter
      (0 reviews)
      # 100278591
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: Standard. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Without Inlet Gasket. Without Outlet...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $70.86 - $100.94
    • Eastern® Standard Universal Fit Resonated Oval Catalytic Converter
      (0 reviews)
      # 100278634
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: Standard. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 3". Outlet Diameter: 3". CARB Compliant: No....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $64.80 - $64.87


    2004 Kia Optima Catalytic Converters Reviews

    Average rating:  4.5  4.5 - 39 reviews
    5 of 5
    CanAmMex® 00747-212 - Thunderbolt™ Hi-Polished Single Rolled Angled Oval Tip
    These appear to be of very good quality, good welds.
    JPosted by John (Enfield, CT) /
    Was this review helpful for you? Yes
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    2004 Kia Optima Models
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