Nissan Catalytic Converters & Components

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    • (0 reviews)
      # sp106310
      CalCat™ Manifold with Integrated Catalytic Converter 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...
      Constructed to meet your vehicle’s specific emissions requirementsDirect fit design
      $217.34 - $566.42
    • (7 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 high-spec...
      Ensures an even distribution of the gas flow in the converter to deliver optimized conversion of harmful gasesConcepts-enhance the reduction of emissions and ensure a high durability
      $71.01 - $458.18
    • (6 reviews)
      # sp4294
      Direct Fit 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 alternative to...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $36.86 - $550.49
    • (7 reviews)
      # sp93964
      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...
      5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
      $57.60 - $642.14
    • (14 reviews)
      # sp13664
      Direct Fit Catalytic Converter by Davico®. 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 perform its job, replacement is the...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $30.04 - $1,263.55
    • (5 reviews)
      # sp92788
      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 which...
      Direct fitMade from a heavy duty stainless steel outer shell
      $141.23 - $851.76
    • (9 reviews)
      # sp18944
      Direct Fit Catalytic Converter by PaceSetter®. CARB Compliant: No. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Stainless Steel. Custom Engineered to deliver maximum performance and...
      Direct-Fit Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent 16-gauge and stainless steel tubing
      $60.25 - $671.66
    • (0 reviews)
      # sp106550
      ECO CARB Exhaust Manifold with Integrated Catalytic Converter by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your vehicle, this manifold with integrated...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $221.68 - $732.28
    • (2 reviews)
      # sp107600
      Exhaust Manifold with Integrated Catalytic Converter by Davico®. This product by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job, replacement is the...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $146.74 - $643.27
    • (0 reviews)
      # sp4295
      Universal Fit Catalytic Converter by Eastern®. 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...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $34.10 - $250.50
    • (6 reviews)
      # sp128212
      CalCat Catalytic Converter and Pipe Assembly 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...
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $136.97 - $877.94
    • (0 reviews)
      # sp128213
      CalCat Direct Fit Catalytic Converter (California Legal) by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle...
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $126.50 - $521.30
    • (13 reviews)
      # sp10058
      Ultra™ 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...
      5 Year / 50,000 Miles Warranty on Structural Components5 Year / 50,000 Miles Warranty on Exhaust Emission (CARB Models)
      $78.55 - $552.32
    • (1 review)
      # sp10059
      Ultra™ 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...
      EPA & CARB Emissions Products Available for Most Vehicles5 Year / 50,000 Miles Warranty on Structural Components
      $55.65 - $127.32
    • (6 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, an...
      EPA & CARB Emissions Products Available for Most VehiclesEmission, Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $60.37 - $285.29
    • (2 reviews)
      # sp20037
      Manifold with Integrated Catalytic Converter by Bosal®. 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 manufacturing...
      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
      $180.23 - $731.52
    • (0 reviews)
      # sp106606
      Premium Load Exhaust Manifold with Integrated Catalytic Converter by Bosal®. 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...
      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
      $304.41 - $401.65
    • (6 reviews)
      # sp128225
      Catalytic Converter and Pipe Assembly by Bosal®. 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 manufacturing techniques...
      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
      $80.75 - $857.03
    • (0 reviews)
      # sp157608
      Universal Fit Catalytic Converter by Bosal®. 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 manufacturing techniques to...
      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
      $50.68 - $121.99
    • (0 reviews)
      # sp159995
      Universal Fit Catalytic Converter (P) by Bosal®. 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 manufacturing techniques...
      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
      $50.68 - $206.44
    • (0 reviews)
      # sp159996
      Universal Fit Catalytic Converter 50MW by Bosal®. 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 manufacturing...
      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
      $192.93 - $206.44
    • (0 reviews)
      # sp106557
      ECO II Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your vehicle, this manifold...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $169.76 - $625.62
    • (2 reviews)
      # sp106558
      ECO III Exhaust Manifold by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your vehicle, this manifold with integrated catalytic converter is a great...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $162.39 - $619.60
    • (2 reviews)
      # sp21032
      Manifold with Integrated Catalytic Converter by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your vehicle, this manifold with integrated catalytic...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $211.00 - $473.97
    • (2 reviews)
      # sp106567
      Standard Exhaust Manifold with Integrated Catalytic Converter by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your vehicle, this manifold with integrated...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $243.19 - $594.21
    • (3 reviews)
      # sp128204
      Converter and Pipe Assembly 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 alternative to a...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $76.72 - $761.37
    • (0 reviews)
      # sp128205
      ECO CARB Direct Fit Converter and Pipe Assembly 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...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $163.25 - $1,100.90
    • (4 reviews)
      # sp128207
      ECO II Direct Fit Converter and Pipe Assembly 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...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $108.34 - $575.05
    • (7 reviews)
      # sp106571
      ECO II Universal Fit Undercar Catalytic Converter by Eastern®. Focused on manufacturing only top-grade emission control products, Eastern Catalytic will perfectly serve your purpose if you opt for a high quality catalytic converter....
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $34.10 - $116.97
    • (2 reviews)
      # sp128208
      ECO III Direct Fit Converter and Pipe Assembly 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...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $118.85 - $643.42




    The Nissan 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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    Nissan Catalytic Converters Reviews

    Average rating:    4.5 - 16 reviews
    4 of 5
    Super Cool Looking!!
    They are of high quality material and very well made for the most part. They were slightly off in the bend but very minor. And the passenger side needed a shim. We cut the flange off the old original cat then gasketed it on both sides. Then had to tweak the whole system back into alignment. As for sound they give the system a good low tone with no hiss. Quality sound for sure. Recommend this product for sure. We put them on with a full Borla setup with headers . It was very quite with a low rumble but no cackle or rasp in the sound. The volume of sound was of a very high quality but very very quiet even at high RPMs. This system we did really increased the horse power though. This was on a Nissan 350z.
    Posted by Troy (Pekin, IL) / August 10, 20182006 Nissan 350Z
    Was this review helpful for you? Yes
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