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    • Walker® Replacement Exhaust Kit
      (0 reviews)
      # sp18723
      Replacement Exhaust Kit by Walker.
      $1.82 - $846.42
    • Dorman® Exhaust Manifold
      (6 reviews)
      # sp4033
      Exhaust Manifold by Dorman. Whether your exhaust manifold is cracked or broken, you definitely need to replace it, and this product is a great solution. Thanks to its strong tubular construction, the Dorman exhaust manifold is...
      $5.96 - $732.84
    • DEC® Exhaust Manifold with Integrated Catalytic Converter
      (0 reviews)
      # sp9246
      Exhaust Manifold with Integrated 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...
      $17.33 - $933.80
    • Walker® Direct Fit Catalytic Converter
      (19 reviews)
      # sp4303
      Direct Fit Catalytic Converter by Walker. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an...
      $58.69 - $846.42
    • Walker® Universal Fit Catalytic Converter
      (1 reviews)
      # sp4304
      Universal Fit Catalytic Converter by Walker. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker,...
      $56.41 - $435.22
    • Walker® Catalytic Converter
      (20 reviews)
      # sp4305
      Catalytic Converter by Walker. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry...
      $56.41 - $846.42
    • Walker® CalCat Universal Fit Rear Catalytic Converter
      (3 reviews)
      # sp7146
      CalCat Universal Fit Rear Catalytic Converter by Walker. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers....
      $70.74 - $210.48
    • Bosal® Catalytic Converter
      (8 reviews)
      # sp4602
      Catalytic Converter by Bosal. Bosal has a comprehensive range of more than 1,000 petrol and diesel catalytic converters, including the latest Euro 4 type-approved units. Manufactured in TUV-certified plants using the latest...
      $63.45 - $839.06
    • Eastern® Direct Fit Catalytic Converter
      (0 reviews)
      # sp4294
      Direct Fit Catalytic Converter by Eastern Catalytic. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter is a great...
      $94.73 - $1,086.65
    • Eastern® Universal Fit Catalytic Converter
      (0 reviews)
      # sp4295
      Universal Fit Catalytic Converter by Eastern Catalytic. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need a new one, and this product is the way to go. Made of...
      $65.15 - $260.28
    • Eastern® EPA Direct Fit Undercar Catalytic Converter
      (11 reviews)
      # sp7036
      EPA Direct Fit Undercar Catalytic Converter by Eastern. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter is a great...
      $41.49 - $789.47
    • Eastern® EPA Universal Fit Undercar Catalytic Converter
      (6 reviews)
      # sp7037
      Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need a new one, and this product is the way to go. Made of stainless steel, the catalytic converter is designed to reduce...
      $38.88 - $295.98
    • DEC® Direct Fit Catalytic Converter
      (5 reviews)
      # sp9239
      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 steel outer shell...
      $92.19 - $1,134.38
    • Crown® Catalytic Converter
      (0 reviews)
      # sp4222
      Catalytic Converter by Crown. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      $235.17 - $925.00
    • AP Exhaust® Direct Fit Catalytic Converter
      (1 reviews)
      # sp13207
      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 catalytic convert systems can be found in a vast array of...
      $84.93 - $930.34




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    The Plymouth 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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    Plymouth Catalytic Converters Reviews

    Average rating:  4.5  4.5 - 1 review
    4.5 of 5
    Magnaflow Catalytic Converter
    Sounds good, fits just right, easy to do I did it in my driveway.
    WPosted by William (Damascus, MD) /
    1997 Dodge Neon
    Was this review helpful for you? Yes
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