2004 Kia Optima Performance Exhaust Systems

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    • (0 reviews)
      # 380863266
      Kia Optima With LEV Specification / With LEV1 Specification 2004, Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Direct Fit. Without Air Tube. Without O2 Sensor Port. If your car needs...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $436.61 - $527.72
    • (0 reviews)
      # 136722519
      Kia Optima 2.7L 2004, Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by PaceSetter®. Emissions: EPA compliant. PaceSetter Direct-Fit Manifold Catalytic Converters are a direct replacement of original equipment...
      Manifold Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent stainless steel tubing for a low restriction tubular manifold design
      $199.53
    • (0 reviews)
      # 389093795
      Kia Optima 2.7L 2004, Heavy Metal Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Emissions: EPA compliant. Color: Silver. Header...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $400.94 - $412.59
    • (0 reviews)
      # 285584679
      Kia Optima with LEV1 LEV Specifications 2.7L 2004, Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Emissions: CARB compliant....
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $518.59 - $529.74
    • (0 reviews)
      # 61589118
      Kia Optima 2.7L 2004, OEM Grade Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Emissions: EPA compliant. Color: Silver. Header...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $459.75 - $471.43
    • (0 reviews)
      # 199202240
      Kia Optima 2.4L 2004, Standard Grade Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Flowmaster's Standard Grade line of Manifold direct fit catalytic converters are specifically...
      Made of High Quality Stainless SteelImprove Torque and Throttle Response
      $278.07 - $341.79
    • (0 reviews)
      # 465993349
      Kia Optima With LEV Specification / With LEV1 Specification 2004, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube....
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $165.85 - $185.78
    • (0 reviews)
      # mpn1038330
      Kia Optima 2004, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port....
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $111.97
    • (0 reviews)
      # mpn1058905
      Kia Optima 2004, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port....
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $136.20
    • (0 reviews)
      # 61589116
      Kia Optima 2004, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Without Air Tube. If your car needs replacement, install one that will get you through the smog check...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $260.85 - $374.60
    • (0 reviews)
      # 380863267
      Kia Optima 2004, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Without Air Tube. If your car needs replacement, install one that will get you through the smog check and...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $339.30 - $468.89
    • (0 reviews)
      # 231133069
      Kia Optima 2004, Exhaust Manifold Gaskets by Auto 7®. An exhaust leak at the manifold can cause noise, poor engine performance, and even engine damage, and may even allow deadly CO to enter the cabin. Auto 7 has the quality parts...
      Original equipment quality parts for Hyundai, KIA and GM Daewoo vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $8.95 - $14.75
    • (0 reviews)
      # 115293888
      Kia Optima 2004, Replacement Exhaust Kit by Walker®. If you are looking for the ultimate in quality and value, then this superior replacement exhaust kit by Walker is what you need. All its components are designed with precision...
      Direct fit replacementIncludes all applicable flanges, hangers, and sensor fittings
      $43.35 - $334.90
    • (0 reviews)
      # 157412158
      Kia Optima 2004, Replacement Exhaust Kit by Bosal®. Emissions: EPA compliant. Get confidence with this high-standard OE quality purchase which is perfect for those who want to perform a long-lasting exhaust system repair. Made from...
      Superior replacement for your worn out exhaust partHelps put your vehicle back to its tip-top shape
      $38.67 - $315.15
    • (0 reviews)
      # 165508990
      Kia Optima 2004, Replacement Exhaust Kit by AP Exhaust®. Get confidence with this high-standard OE quality purchase which is perfect for those who want to perform a long-lasting exhaust system repair. Made from top-notch materials,...
      Superior replacement for your worn out exhaust partHelps put your vehicle back to its tip-top shape
      $81.60 - $496.97
    • (0 reviews)
      # 231133105
      Kia Optima 2.7L 2004, Cast Iron Natural Exhaust Manifold with Integrated Catalytic Converter by Dorman®. Finish: Natural. Includes: Exhaust Manifold, Gaskets and Hardware. More like a complete kit than a single part, many of the...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsConstruction protects against warping and/or cracking
      $311.95 - $327.77
    • (0 reviews)
      # 231133193
      Kia Optima 2.7L 2004, Ultra™ Exhaust Manifold with Integrated Catalytic Converter by Walker®. Emissions: EPA compliant. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry leader,...
      Constructed to meet your vehicle’s specific emissions requirementsDesigned to meet EPA regulations
      $317.20 - $323.09
    • (0 reviews)
      # 466290468
      Kia Optima 2004, Exhaust Manifold with Integrated Catalytic Converter by Bosal®. Emissions: EPA compliant. Includes: Two O2 Sensor Ports. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal....
      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
      $315.15
    • (0 reviews)
      # 346420198
      Kia Optima 2.7L 2004, ECO CARB WU-TWC Exhaust Manifold with Integrated Catalytic Converter by Eastern®. Includes: 1 Inlet Gasket, 1 Outlet Gasket, Outlet Hardware. If you need to replace your failed or damaged manifold, this...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $354.40 - $354.98
    • (0 reviews)
      # 346420204
      Kia Optima 2.7L 2004, ECO III Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by Eastern®. Includes: 1 Inlet Gasket, 1 Outlet Gasket, Outlet Hardware. If you need to replace your failed or damaged manifold,...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $295.85 - $313.20
    • (0 reviews)
      # mpn946776
      Kia Optima with Tier0 Specification / with TIER1 Specification 2.4L 2004, Front Exhaust Manifold with Integrated Catalytic Converter by DEC®. Location: Front. Emissions: EPA compliant. Pick out a catalytic converter by DEC and get...
      Direct fitMade from a heavy duty stainless steel outer shell
      $368.86
    • (0 reviews)
      # 447932402
      Kia Optima 2.7L 2004, Exhaust Manifold with Integrated Catalytic Converter by Davico®. Emissions: EPA compliant. This product by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $329.36 - $375.52
    • (0 reviews)
      # 286271401
      Kia Optima 2004, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. With 1 Inlet. Without Air Tube. Without O2 Sensor Port. The Right converter, the Right choice. Universal...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $74.34 - $95.06
    • (0 reviews)
      # 87067438
      Kia Optima 2004, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Without O2 Sensor Port. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker,...
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $200.08 - $334.90
    • (0 reviews)
      # mpn1897019
      Kia Optima Engine Family Number 4KMXV02.4D04 2.4L 2004, CalCat™ Catalytic Converter by Walker®. Emissions: CARB compliant. Converter Configuration: Direct Fit. Position: Front. Catalytic Converter Body Shape: Round. With 1 Inlet....
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $292.52
    • (0 reviews)
      # mpn1837119
      Kia Optima Engine Family Number 4KMXV02.4D04 2.4L 2004, CalCat™ Catalytic Converter by Walker®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Small Oval. With 1...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $121.06
    • (0 reviews)
      # 212110025
      Kia Optima 2004, Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle manufacturers...
      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
      $219.34 - $314.15
    • (0 reviews)
      # 88869093
      Kia Optima 2004, ECO CARB Undercar Catalytic Converter by Eastern®. Emissions: CARB compliant. Converter Configuration: Direct Fit. If you need to replace your failed or damaged catalytic converter, this product is the right...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $255.31 - $300.84
    • (0 reviews)
      # 172077549
      Kia Optima 2004, Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Position: Rear Undercar. Catalytic Converter Body Shape: Oval. Without O2 Sensor Ports. Catalytic Inlet Diameter:...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $38.48 - $59.04
    • (0 reviews)
      # mpn1261043
      Kia Optima 2.4L 2004, ECO II Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Front. With 1 O2 Sensor Port. If you need to replace your failed or damaged catalytic converter,...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $203.86
    • (0 reviews)
      # 286271412
      Kia Optima 2004, Standard Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Rear Undercar. Without O2 Sensor Ports. Catalytic Converter Overall Length: 48". If you need to...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $236.50 - $354.32
    • (0 reviews)
      # 81060388
      Kia Optima 2004, Catalytic Converter by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made...
      Direct fitMade from a heavy duty stainless steel outer shell
      $205.63 - $441.25
    • (0 reviews)
      # 128904718
      Kia Optima 2004, Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Without Air Tube. Three-Way No / Air OBDII By Design US-EPA Compliant catalytic converters are efficient at the oxidation of HC’s and...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $81.60 - $295.33
    • (0 reviews)
      # 81676642
      Kia Optima 2004, Catalytic Converter by AP Exhaust®. Converter Configuration: Direct Fit. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts and catalytic...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $229.47 - $496.97
    • (0 reviews)
      # mpn2231259180
      Kia Optima 2.4L 2004, Catalytic Converter by PaceSetter®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Front. If you want to get the most out of your vehicle, this PaceSetter product is second to none....
      PaceSetter Catalytic Converters are a direct replacement for original equipmentEngineered for durability and ease of installation
      $99.09
    • (0 reviews)
      # 83039169
      Kia Optima 2004, Catalytic Converter by Davico®. Emissions: EPA compliant. Converter Configuration: Direct Fit. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $329.36 - $375.52
    • (0 reviews)
      # 464484939
      Kia Optima 2004, Exhaust Muffler by Ansa®. This premium part is essential for completing a professional exhaust installation. The key a well-functioning vehicle is about purchasing only premium quality parts and hardware. ANSA...
      Engineered to provide excellent exhaust system managementBuilt to the strict quality standards
      $71.44 - $136.78
    • (0 reviews)
      # 211514087
      Kia Optima 2004, Quiet-Flow™ Stainless Steel Oval Aluminized Exhaust Muffler by Walker®. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2". Muffler Body Length: 19". Muffler Overall Length: 27.75". Together with delivering...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $87.91
    • (0 reviews)
      # 211514091
      Kia Optima 2004, Stainless Steel Round Aluminized Resonator Assembly by Walker®. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2". Muffler Body Length: 19". Muffler Overall Length: 40.25". If you want exhaust piping that...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $43.35
    • (0 reviews)
      # 157412209
      Kia Optima 2004, Center Resonator Assembly by Bosal®. This muffler is constructed by one of the leading OE suppliers to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows for easy,...
      Aluminized steel construction for maximum durabilityOne Piece interior to end cap construction to reduce flex and stand up to vehicle vibration
      $38.67
    • (0 reviews)
      # 211514085
      Kia Optima 2004, Aluminized Steel Intermediate Pipe by Walker®. Material: Aluminized Steel. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the...
      Made of High Quality Aluminized SteelCorrosion Resistant
      $18.15
    • (0 reviews)
      # 81771210
      Kia Optima 2004, Oxygen Sensor by Delphi®. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering together to develop the most...
      OE connectors and wire lengths within three inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $37.02 - $65.38
    • (1 review)
      # 44949311
      Kia Optima 2004, Oxygen Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $44.92 - $69.85
    • (0 reviews)
      # 405226032
      Kia Optima 2004, Oxygen Sensor by Bosch®. The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each...
      OE-EquivalentOE Style connectors and wire lengths
      $33.04 - $39.68
    • (0 reviews)
      # 405250925
      Kia Optima 2004, Premium Oxygen Sensor by Bosch®. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an Oxygen Sensor from Bosch that is...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $33.51 - $92.03
    • (0 reviews)
      # 21093047
      Kia Optima 2004, Oxygen Sensor by Denso®. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle,...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $46.62 - $88.47
    • (0 reviews)
      # 22140718
      Kia Optima 2004, Oxygen Sensor by NTK®. Thimble Type Sensors Feature a Ceramic Element that Projects into the Exhaust System and Becomes Electrically Conductive at High Temperature. The Sensor Element then Sends Voltage Signals...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $37.28 - $61.87
    • (0 reviews)
      # 22844281
      Kia Optima 2004, Oxygen Sensor by Spectra Premium®. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s most...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $27.00 - $42.94
    • (1 review)
      # 211514093
      Kia Optima 2004, Heavy Duty Stainless Steel U-Bolt Clamp by Walker®. Material: Stainless Steel. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do...
      Makes installation quick and easyOptimal OE-style fit and quality
      $1.22
    • (0 reviews)
      # 212110109
      Kia Optima 2004, Rubber Mounting by Bosal®. Location: Rear Converter. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal,...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $2.31 - $2.93
    • (0 reviews)
      # 231316366
      Kia Optima 2004, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $8.69 - $10.57
    • (0 reviews)
      # 231133076
      Kia Optima 2004, Exhaust Manifold Gasket by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in...
      OE quality products from top original equipmentTop quality materials
      $8.75 - $12.96
    • (0 reviews)
      # mpn1334498
      Kia Optima 2.7L 2004, Multi-Layer Steel Exhaust Manifold Gasket by AJUSA®. Material: Multi-Layer Steel. These gaskets seal components in the intake and exhaust systems of the vehicle such as the intake manifold, intake plenum, and...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $13.04
    • (0 reviews)
      # mpn1321465
      Kia Optima 2.4L 2004, Multi-Layer Steel Exhaust Manifold Gasket Set by AJUSA®. Material: Multi-Layer Steel. These gaskets seal components in the intake and exhaust systems of the vehicle such as the intake manifold, intake plenum,...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $8.04
    • (0 reviews)
      # mpn607153
      Kia Optima 2.7L 2004, Multi-Layer Steel Exhaust Manifold Gasket Set by Victor Reinz®. Material: Multi-Layer Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
      High quality at an affordable priceExpertly made from premium materials
      $17.65
    • (0 reviews)
      # mpn603895
      Kia Optima 2.4L 2004, Multi-Layer Steel Exhaust Manifold Gasket by Victor Reinz®. Material: Multi-Layer Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
      High quality at an affordable priceExpertly made from premium materials
      $11.88
    • (0 reviews)
      # 231133178
      Kia Optima 2.7L 2004, Exhaust Pipe to Manifold Gasket by Victor Reinz®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
      High quality at an affordable priceExpertly made from premium materials
      $2.49 - $6.11
    • (0 reviews)
      # mpn2248668
      Kia Optima 2.4L 2004, Exhaust Manifold Gasket by Donga®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...
      High quality at an affordable priceExpertly made from premium materials
      $10.41
    • (0 reviews)
      # mpn2954512
      Kia Optima 2.7L 2004, Exhaust Manifold Gasket by Keukdong®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before...
      High quality at an affordable priceExpertly made from premium materials
      $18.73
    • (0 reviews)
      # 231133093
      Kia Optima 2004, Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $3.60 - $5.07




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    Popular Products



    2004 Kia Optima Performance Exhaust Systems Reviews

    Average rating:  5  5 - 1 review
    4.8 of 5
    Improve The Look And Sound
    This JBA exhaust tip totally improved the look and sound of my car. It was just what i need and the look as described. Recommend it to anyone.
    TPosted by Tormod M (Olpe, KS) / November 21, 2016
    2011 Ford F-150
    Was this review helpful for you? Yes

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