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Today, on our shelves, you will have a chance to find our great variety of the Infiniti QX4 Exhaust Parts. These parts are created to help the exhaust system of your lovely vehicle function much better. Besides, all of them need to work in harmony, because if one of them is broken, the system will not be able to work. Do you know what components we are talking about? They are the exhaust catalyst, the exhaust pipes, the exhaust manifold, the muffler, and the tail pipe. Moreover, they are used to perform specific functions for the entire mechanism to operate.

The exhaust manifold is the first element that the exhaust gases pass through. Its function is to burn any leftover fuel, which was not burned, and funnel it down through the exhaust pipes to the exhaust catalyst. The latter, in its turn, converts harmful pollutants into less toxic substances before they leave the vehicle. Then, the exhaust gases go through the muffler that is used to reduce the growling sounds that can be caused by the traveling exhaust flow. And finally, the exhaust gases pass through the tail pipe. Do you want to get these components at the best prices? Contact CARiD.

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    • (7 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...
      Direct OEM replacementCast iron or stainless tubular construction protects against cracking and warping
      $40.95 - $974.79
    • (21 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,...
      $58.69 - $846.42
    • (4 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...
      $56.41 - $447.77
    • (9 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...
      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
      $63.45 - $839.06
    • (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...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $94.73 - $1,086.65
    • (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...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $65.15 - $260.28
    • (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...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $41.49 - $789.47
    • (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...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $38.88 - $296.35
    • (8 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...
      Direct fitMade from a heavy duty stainless steel outer shell
      $92.19 - $1,271.88
    • (0 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...
      Catalytic Converters are a direct replacement for original equipmentEngineered for durability and ease of installation
      $135.41 - $528.73
    • (2 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...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $84.93 - $1,122.56
    • (1 review)
      # sp13214
      Universal Fit Universal Fit Catalytic Converter by AP Exhaust®. 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 NOx,...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $56.41 - $341.58
    • (6 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...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $2.32 - $707.98
    • (19 reviews)
      # sp4412
      Quiet-Flow Muffler by Walker®. Together with delivering OE-style sound, the Quiet-Flow Muffler features 100% steel construction for maximum durability. This part is a perfect choice if you are looking for proper OE-quality...
      $29.28 - $654.91
    • (14 reviews)
      # sp4416
      SoundFX™ Direct Fit Muffler by Walker®. This muffler is the right choice if you opt for quality acoustics and performance. Walker offers 100% aluminized steel SoundFX Mufflers with direct fit and universal fit options available,...
      $25.64 - $125.19




    Guides & Articles

    • Performance Exhaust Systems
      Why Do Some Replacement Exhaust Manifolds Come With Catalytic Converters?
      If you're looking for a replacement exhaust manifold, you may notice that the choices available for your specific vehicle are only available with an "integrated" catalytic converter. In the same way, a search for a replacement catalytic converter may only turn up "combination" converter/manifold products.
    • Replacement Exhaust Parts
      Direct Fit vs. Universal Mufflers
      Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences between these two styles so you can make a more informed purchase.

    Popular Products

    Infiniti QX4 Exhaust Parts Reviews

    Average rating:  4.5  4.5 - 39 reviews
    5 of 5
    CanAmMex® 00747-212 - Thunderbolt™ Hi-Polished Single Rolled Angled Oval Tip
    These appear to be of very good quality, good welds.
    JPosted by John (Enfield, CT) /
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