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    • (0 reviews)
      # 772545379
      Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. Without Air Tube. With O2 Sensor Port. Catalytic Converter Overall...
      High precious metal load and high technology washcoat for premium performanceStainless steel body and aluminized body and pipe heat shields for durability
      $103.77 - $116.98
    • (0 reviews)
      # 772684912
      Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. With 1 Inlet. This catalytic converter features the correct load of precious metals to ensure the proper limitation of tailpipe emissions....
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $60.99 - $115.18
    • (0 reviews)
      # 772658909
      ECO GM Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. Catalytic Converter Overall Length: 16". Whether your catalytic converter is damaged...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $74.29 - $78.54
    • (0 reviews)
      # 772658913
      Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Whether your catalytic converter is damaged by road debris or failed due to an engine...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $62.76 - $130.82
    • (0 reviews)
      # 772572907
      Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $37.29 - $93.88
    • (0 reviews)
      # 772532381
      Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $34.85 - $79.69
    • (0 reviews)
      # 772600908
      608 Series Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Without Air Tube. Three-Way No / Air OBDII By Design US-EPA Compliant catalytic converters are efficient at the oxidation...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $64.99 - $176.94
    • (0 reviews)
      # 772711907
      Enhanced Standard Duty Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Three-Way No / Air OBDII By Design US-EPA...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $52.46 - $101.54
    • (0 reviews)
      # mpn474117414
      Heavy Duty Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. With Single Air Tube. With O2 Sensor Port. Catalytic Converter Overall Length: 17"....
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $145.05
    • (0 reviews)
      # 772613912
      High Flow Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Converter Overall Length: 14"....
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $180.94
    • (0 reviews)
      # mpn474117777
      Large Body Super X Duty Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. With O2 Sensor Port. Catalytic Converter Overall...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $129.83
    • (0 reviews)
      # 772585914
      Medium Duty Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Three-Way No / Air OBDII By Design US-EPA Compliant catalytic converters are...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $89.87 - $113.91
    • (0 reviews)
      # 772712907
      Standard Duty Spun Body Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Converter Overall...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $44.26
    • (0 reviews)
      # 772566907
      Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Three-Way No / Air OBDII By Design US-EPA Compliant catalytic converters are efficient at the oxidation of HC’s and CO, and very efficient at the reduction of...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $131.73 - $299.51
    • (0 reviews)
      # 772532401
      Catalytic Converter by Bosal®. Converter Configuration: Universal 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 and use advanced...
      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
      $47.96 - $166.16
    • (0 reviews)
      # 842161640
      OBDII Catalytic Converter by Davico®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. This Universal fit catalytic converter by Davico will be a great solution to replace your...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $58.76 - $63.95
    • (0 reviews)
      # 1083493738
      OBDII Catalytic Converter by PaceSetter®. Emissions: EPA compliant. Converter Configuration: Universal Fit. If you want to get the most out of your vehicle, this PaceSetter product is second to none. Engineered with meticulous attention...
      Heavy Precious Metals LoadingFits 1000s of Different vehicles; Fabrication is required
      $28.24 - $31.07
    • (1 review)
      # 772519380
      Bullet Cat™ ECO II Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without O2 Sensor Ports. Whether your catalytic converter is damaged by road...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $58.59 - $71.62
    • (1 review)
      # 772696907
      Bullet Cat™ ECO III Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without O2 Sensor Ports. Whether your catalytic converter is damaged by road...
      Direct OEM replacementDesigned with twice the amount of Rhodium to help keep the MIL off on vehicles with high mileage, low emissions, or higher than normal emissions
      $71.94 - $87.14
    • (0 reviews)
      # mpn1233537
      ECO III Stuffed Tube Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With EndCap. Without O2 Sensor Ports. Catalytic Inlet Diameter: 2". Catalytic...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $70.95
    • (0 reviews)
      # 772681907
      OBDII Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Contains approximately 40% higher precious metal content than most other aftermarket brands....
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $164.43 - $183.53
    • (0 reviews)
      # 772629910
      QuieCat™ ECO II Resonated Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Catalytic Converter Overall Length: 18". The new Eastern Catalytic...
      Baffled tube reduces sound levels by 35% without losing horsepowerHigh flow design retains maximum engine output and maximizes catalytic efficiency
      $75.41 - $78.34
    • (0 reviews)
      # 772545385
      QuieCat™ ECO III Resonated Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Catalytic Converter Overall Length: 18". The new Eastern Catalytic...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $91.75 - $95.32
    • (0 reviews)
      # 772582912
      QuieCat™ Standard Resonated Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Ports. Catalytic Converter Overall Length: 18". The...
      Baffled tube reduces sound levels by 35% without losing horsepowerHigh flow design retains maximum engine output and maximizes catalytic efficiency
      $50.53 - $53.20
    • (0 reviews)
      # 772653907
      Standard Stuffed Tube Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With EndCap. Without O2 Sensor Ports. Whether your catalytic converter is...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $40.69 - $41.50
    • (0 reviews)
      # 772713910
      Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 16". Whether your catalytic...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $61.49 - $79.69
    • (1 review)
      # 772714913
      Air Tube Saddle Clamp by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest quality. This AP Exhaust Technologies...
      Made from first-rate materialsEnsures outstanding durability
      $1.84 - $1.85
    • (0 reviews)
      # mpn500338412
      Ultra™ Catalytic Converter (93312) by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. Without Air Tube. With O2 Sensor Port. Catalytic Converter...
      High precious metal load and high technology washcoat for premium performanceStainless steel body and aluminized body and pipe heat shields for durability
      $103.77
    • (0 reviews)
      # mpn500338413
      Ultra™ Catalytic Converter (93313) by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. Without Air Tube. With O2 Sensor Port. Catalytic Converter...
      High precious metal load and high technology washcoat for premium performanceStainless steel body and aluminized body and pipe heat shields for durability
      $116.98
    • (0 reviews)
      # mpn500338414
      Ultra™ Catalytic Converter (93314) by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. Without Air Tube. With O2 Sensor Port. Catalytic Converter...
      High precious metal load and high technology washcoat for premium performanceStainless steel body and aluminized body and pipe heat shields for durability
      $110.52




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    The Bentley catalytic converter (AKA catcon or cat) was first introduced in the mid-70's, and back then, it performed only two tasks, which is exactly why it was called a two-way converter. It oxidized carbon monoxide to carbon dioxide and hydrocarbons to water and carbon dioxide (oxidation stage). In 1981, the two-way converter was replaced by a much more efficient three-way catcon, which additionally reduced nitrogen oxide emissions (reduction stage).

    Today, the two-way version is used in diesel applications only, while most vehicles are equipped with a three-way catalytic converter. Located between the engine and muffler, the converter actually resembles a muffler in shape, though the construction of these two units is completely different. The body of the converter is usually made of stainless steel. Inside the body, you'll find an insulated chamber, which contains three main components of any converter: substrate (or catalyst core), washcoat, and catalyst.

    The catalyst core usually has a honeycomb structure, and it's most often a ceramic monolith. Basically, it serves as a support for the washcoat. The washcoat itself is a carrier for the catalytic materials. Materials for the washcoat are chosen to form an irregular surface, which maximizes the catalytically active layer available to react with the exhaust gases. And then comes the catalyst, which is most ofter a mixture of precious metals such as palladium (oxidation catalyst) and rhodium (reduction catalyst). When the exhaust stream passes through the converter, it contacts with the catalyst and all the toxic elements covert into the harmless substances. The leaving gas is monitored by the control system to make sure it meets the emissions requirements.

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