2004 Kia Optima Performance Exhaust Systems

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    • (0 reviews)
      # 66580320
      Kia Optima 2.7L 2004, Direct Fit California Front Catalytic Converter with Header by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Location: Front. CARB Compliant: Yes....
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $529.74 - $530.26
    • (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
      $436.60 - $527.72
    • (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
    • (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
    • (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
    • (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
    • (0 reviews)
      # 136722519
      Kia Optima 2.7L 2004, Direct Fit Catalytic Converter with Integrated Manifold by PaceSetter®. CARB Compliant: No. Converter Body Material: Stainless Steel. Converter Configuration: Direct Fit. PaceSetter Manifold Catalytic...
      Manifold Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent stainless steel tubing for a low restriction tubular manifold design
      $250.79
    • (0 reviews)
      # 115294054
      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
      $86.37 - $328.33
    • (0 reviews)
      # 87067439
      Kia Optima 2.7L 2004, Ultra™ Direct-Fit Manifold with Integrated Catalytic Converter by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: No. Converter Configuration: Direct...
      EPA & CARB Emissions Products Available for Most Vehicles5 Year / 50,000 Miles Warranty on Structural Components
      $310.98 - $316.75
    • (0 reviews)
      # 88869093
      Kia Optima 2.7L Engine Family: 4KMXV02.7E03 2004, ECO CARB Manifold with Integrated Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $347.45 - $348.01
    • (0 reviews)
      # 111776478
      Kia Optima 2.7L 2004, ECO III Manifold with Integrated Catalytic Converter by Eastern®. Catalytic Series: ECO III. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $307.06 - $312.97
    • (0 reviews)
      # 62543405
      Kia Optima 2.7L 2004, Exhaust Manifold with Integrated Catalytic Converter by Dorman®. Finish: Natural. Material: Cast Iron. Exhaust Manifold Inlet Port Shape: Round. With Installation Hardware. Bolt Hole Quantity: 2. Package Type:...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking
      $282.26 - $404.31
    • (0 reviews)
      # 72352313
      Kia Optima 2.7L 2004, Manifold with Integrated Federal Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: 48-State Legal. Includes: Two O2 Sensor Ports. If you’re in need of a replacement...
      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
    • (0 reviews)
      # 88066347
      Kia Optima 2.4L 2004, CalCat™ Front Stainless Steel Direct-Fit Round Catalytic Converter by Walker®. Location: Front. Includes: Warranty Card. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $284.63
    • (0 reviews)
      # 88066348
      Kia Optima 2.4L 2004, CalCat™ Rear Stainless Steel Universal Fit Small Oval Catalytic Converter without Air Tube by Walker®. Location: Rear. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $140.56
    • (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: No. Converter Configuration: Direct Fit. Converter...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $198.01 - $328.33
    • (0 reviews)
      # 87067438
      Kia Optima 2004, Ultra™ Stainless Steel Universal Fit Catalytic Converter without Air Tube by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: No. Converter Configuration:...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $86.37 - $110.46
    • (0 reviews)
      # 20570063
      Kia Optima 2.4L 2004, California Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: 50-State Legal. 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
      $272.03 - $307.99
    • (0 reviews)
      # 72352312
      Kia Optima 2004, Federal Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: 48-State Legal. 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
      $226.56 - $294.32
    • (0 reviews)
      # 20567594
      Kia Optima 2.4L 2004, Premium Load Front Federal Catalytic Converter by Bosal®. Location: Front. Converter Configuration: Direct Fit. Catalytic Series: Premium Load. CARB Compliant: 48-State Legal. Includes: O2 Sensor Port. If...
      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
    • (0 reviews)
      # 88869089
      Kia Optima 2004, ECO CARB 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...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $250.30 - $294.93
    • (0 reviews)
      # 17573824
      Kia Optima 2.4L 2004, ECO II Front Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location:...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $210.57
    • (0 reviews)
      # 100277957
      Kia Optima 2.4L 2004, ECO II 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"....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $64.60
    • (0 reviews)
      # 111776475
      Kia Optima 2004, Standard Rear Catalytic Converter by Eastern®. Catalytic Series: Standard. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Catalytic Converter Overall...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $231.85 - $347.37
    • (0 reviews)
      # 100278189
      Kia Optima 2.7L 2004, Standard Rear Catalytic Converter by Eastern®. Catalytic Series: Standard. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 2". Outlet Diameter: 2"....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $45.48
    • (1 review)
      # 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
      $212.40 - $518.00
    • (0 reviews)
      # 86066572
      Kia Optima 2.4L 2004, Rear Catalytic Converter and Pipe Assembly by DEC®. Engine pipe with converter. Location: Rear. CARB Compliant: Yes. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your...
      Direct fitMade from a heavy duty stainless steel outer shell
      $264.60
    • (0 reviews)
      # 80142268
      Kia Optima 2.4L 2004, Catalytic Converter by AP Exhaust®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Converter Configuration: Direct Fit. CARB Compliant: No. The growing concern for...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $224.97 - $270.05
    • (0 reviews)
      # 81398280
      Kia Optima 2.7L with Curved Outlet 2004, Exhaust Manifold with Integrated Federal Catalytic Converter by AP Exhaust®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Catalytic Converter...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $331.44 - $365.23
    • (0 reviews)
      # 136720779
      Kia Optima 2.4L 2004, Pre-Cat Direct Fit Catalytic Converter by PaceSetter®. Catalytic Converter Format: Pre-Catalytic Converter. CARB Compliant: No. Converter Body Material: Stainless Steel. Converter Configuration: Direct Fit. If...
      Catalytic Converters are a direct replacement for original equipmentEngineered for durability and ease of installation
      $147.02
    • (0 reviews)
      # 83039169
      Kia Optima 2004, Direct Fit Catalytic Converter by Davico®. CARB Compliant: No. 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
      $234.90 - $389.48
    • (0 reviews)
      # 123384677
      Kia Optima 2004, Quiet-Flow™ Aluminized Steel Oval Muffler by Walker®. Muffler Series: Quiet-Flow™. Muffler Body Height: 5.5". Muffler Body Width: 11". Muffler Body Length: 19". Muffler Overall Length: 27.75". Muffler Body...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $96.83
    • (0 reviews)
      # 123384679
      Kia Optima 2004, Stainless Steel Aluminized Round Resonator Assembly by Walker®. Muffler Body Height: 3". Muffler Body Width: 3". Muffler Body Length: 19". Muffler Body Finish: Aluminized. Muffler Body Shape: Round. CARB Compliant:...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $51.78
    • (0 reviews)
      # 80699474
      Kia Optima 2004, 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 makes its...
      Engineered to provide excellent exhaust system managementBuilt to the strict quality standards
      $75.04 - $136.79
    • (0 reviews)
      # 123384675
      Kia Optima 2004, Aluminized Steel Intermediate Pipe by Walker®. CARB Compliant: No. Material: Aluminized Steel. Outlet Diameter: 2". Overall Length: 49.5". Inlet Quantity: 1 Inlet. Outlet Quantity: 1 Outlet. Inlet Connection Type:...
      Made of High Quality Aluminized SteelCorrosion Resistant
      $25.04
    • (1 review)
      # 123384681
      Kia Optima 2004, Heavy Duty Stainless Steel U-Bolt Clamp by Walker®. Material: Stainless Steel. Diameter: 2". Inlet Quantity: 1 Inlet. Outlet Quantity: 1 Outlet. With their extensive selection of accessories and hardware for the...
      Makes installation quick and easyOptimal OE-style fit and quality
      $2.05
    • (0 reviews)
      # 123384671
      Kia Optima 2004, Rubber Insulator by Walker®. Material: Rubber. Overall Length: 2.5". Inlet Quantity: 1 Inlet. Outlet Quantity: 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      $5.11
    • (0 reviews)
      # 95032266
      Kia Optima 2004, Rear Rubber Mounting by Bosal®. Location: Rear. 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, and...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $3.76 - $4.78
    • (0 reviews)
      # 21497240
      Kia Optima 2004, Exhaust Manifold Gasket 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 to...
      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
      $8.61 - $14.20
    • (0 reviews)
      # 19061782
      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
      $13.13 - $15.88
    • (0 reviews)
      # 35840348
      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
      $13.84 - $16.83
    • (0 reviews)
      # 24160239
      Kia Optima 2004, Exhaust Manifold Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. Material: Multi-Layered Steel. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto...
      $17.09 - $23.59
    • (0 reviews)
      # 7842099
      Kia Optima 2.4L 2004, Exhaust Manifold Gasket by Donga®. 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...
      $9.31
    • (0 reviews)
      # 7798521
      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...
      $18.36
    • (0 reviews)
      # 81870305
      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
      $6.46 - $8.03
    • (1 review)
      # 35474807
      Kia Optima 2004, Exhaust Gasket by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      $4.59 - $15.70
    • (0 reviews)
      # 20570088
      Kia Optima 2004, Exhaust Flange Gasket by Bosal®. 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, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $5.12 - $10.24
    • (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...
      $19.57
    • (0 reviews)
      # 19069273
      Kia Optima 2004, Exhaust Pipe Flange Gasket 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 gaskets...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $5.46 - $17.25
    • (0 reviews)
      # 97662279
      Kia Optima 2.7L 2004, Exhaust Manifold Gasket by AJUSA®. Gasket 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 exhaust...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $17.69
    • (0 reviews)
      # 97662205
      Kia Optima 2.4L 2004, Exhaust Manifold Gasket Set by AJUSA®. Gasket 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 exhaust...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $11.76
    • (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...
      $3.97 - $11.56
    • (0 reviews)
      # 24042224
      Kia Optima 2.7L 2004, Exhaust Pipe Connector Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. Material: Perforated Steel. This is an aftermarket part that replaces factory OE # 60496-1, 61383, 60899, 61612, 28764-28020,...
      $3.97
    • (0 reviews)
      # 24042834
      Kia Optima 2.7L 2004, Exhaust Pipe to Manifold Gasket by Victor Reinz®, Use 2 per Car. OEM Standard. Material: Multi-Layered Steel. This is an aftermarket part that replaces factory OE # 28750-38300, 28750-38300, 61503. When...
      $8.79
    • (0 reviews)
      # 7792907
      Kia Optima 2004, Exhaust Gasket by Keukdong®. Position: Front and Rear. Note: This Gasket fits both Ends of the Center Muffler - Which also Connects to the Rear Muffler - Two Hole Gasket. Is your car noisier these days? Can you...
      $9.84
    • (0 reviews)
      # 88881071
      Kia Optima 2004, Center Resonator Assembly by Bosal®. Location: Center. 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...
      Aluminized steel construction for maximum durabilityOne Piece interior to end cap construction to reduce flex and stand up to vehicle vibration
      $45.70
    • (0 reviews)
      # 91560836
      Universal Steel Chrome Shielded Side Exhaust System by Patriot Exhaust®. Inlet Diameter: 2". Outlet Diameter: 3". Sold as a pair. Give your vehicle that custom look with our classic shielded side exhaust system. Large inlet and...
      Give your vehicle that custom look with our classic shielded side exhaust system with a show quality chrome finishLarge inlet and outlet pipes with low back pressure six-sided louvered core mufflers
      $254.65 - $296.58
    • (0 reviews)
      # 142860767
      Universal Race Readies™ Exhaust Adapter by Flowtech®. Race Readies let you keep your car or truck’s exhaust system closed for the street, but wide open for the strip. And, since the caps are secured by just three wing nuts, you...
      Race Readies twin pack includes free track toolGuaranteed not to leak
      $69.98 - $103.95
    • (0 reviews)
      # 139245596
      Universal Super Competition™ Weld-Up Race Kit by Hooker®. Series: Super Competition™. Hooker Weld-up kits work great for racers who need to build custom headers when a specific fit tuned Super Competition header is not...
      Mandrel Bent 1 pc. PrimariesSS NHRA Contingency ID Header Tags
      $270.95 - $529.95
    • (0 reviews)
      # mpn358949929
      Universal 3 1/2" Chrome Lake Pipes by Patriot Exhaust®, Sold as a Pair. Includes Muffler, Brackets. Side Pipe made from Steel. Chrome Lake Pipes 63". Show quality chrome Lake Pipe 4 kits connect to headers or stock exhaust system...
      The look of an expensive tuned header side pipe at a fraction of the costSide pipes come with built-in six sided louvered cored mufflers which absorb sound not horsepower
      $332.21




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    2004 Kia Optima Performance Exhaust Systems Reviews

    Average rating:  4.5  4.5 - 24 reviews
    5 of 5
    Just What I Needed
    As described and at the right price. Easy, fast delivery. A great buy!
    SPosted by Susan (Smith River, CA) /
    Was this review helpful for you? Yes
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