Performance Catalytic Converters

The catalytic converter is a key component of your vehicle’s emissions control system, which prevents pollutants from contaminating our environment. It converts the harmful gases Carbon Monoxide (CO), Hydrocarbons (HC), and Oxides of Nitrogen (NOx) created during combustion, and turns them into water, and the less harmful gases Carbon Dioxide (CO2) and Nitrogen (N2). A faulty catalytic converter can create restriction, reducing exhaust flow and performance. You can eliminate restriction and restore proper exhaust flow, while maintaining emissions compliance, with a performance catalytic converter.

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    • (50 reviews)
      # sp839
      Direct Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check. The Direct Fit Catalytic Converter is available in Pre-OBD II, OBD II, and OEM Grade OBD II configurations.
      $83.35 - $1,871.09
    • (19 reviews)
      # sp95451
      Catalytic Converter by Flowmaster®. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental regulations and, as all Flowmaster products, to deliver the best possible performance. The...
      $102.70 - $1,101.06
    • (0 reviews)
      # sp124110
      Hi-Flow Direct Fit Catalytic Converter Sections by AWE Tuning®. For the enthusiast who wants solid power gains without straying from the factory sound, AWE Tuning offers exhaust upgrades compatible with the OE muffler. AWE Tuning High...
      $2,015.49 - $2,121.85
    • (0 reviews)
      # sp109961
      Catalytic Converters by Pypes®. These Mini converters are 409 stainless for heavy duty applications, but weigh only 2.5 lbs and measure only 11" long. Installed, they only take up 7" in length. The 5.0 Litre is rated at 4,500 lbs capacity.
      $214.99 - $305.99
    • (0 reviews)
      # sp121174
      Primary Sport Catalytic Converters by Fabspeed®. Direct replacement/upgrade for the failure-prone factory catalytic converters; lighter, higher flowing, and more durable for increased performance and longevity. Fabspeeds Sport Cats...
      $1,395.00 - $3,195.00
    • (1 review)
      # sp109884
      Direct Fit Federal Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly...
      $402.61 - $1,094.30
    • (0 reviews)
      # sp109886
      Heavy Metal Federal Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly...
      $250.94 - $836.61
    • (0 reviews)
      # sp109887
      OBDII California Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly...
      $420.14 - $1,006.97
    • (0 reviews)
      # mpn3739127153
      Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Color: Silver. Header Coating: Uncoated. If your car needs replacement, install one that will get you through the smog check....
      $591.65
    • (0 reviews)
      # mpn3739127117
      Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.375". Collector Outlet Diameter: 4.625". Emissions: CARB compliant. Color: Silver. Header Coating: Uncoated. If your car...
      $654.66
    • (0 reviews)
      # mpn3739127095
      Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Color: Silver. Header Coating: Uncoated. If your car needs...
      $668.62
    • (0 reviews)
      # mpn3739127129
      Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Color: Silver. Header Coating: Uncoated. If your car needs...
      $602.53
    • (0 reviews)
      # sp96180
      Direct Fit Diesel Particulate Filter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This Particulate will directly replace the factory unit, with little or no fabrication required.
      $881.94 - $2,413.12
    • (5 reviews)
      # sp96188
      Universal Fit Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This universal fit converter will require some fabrication to be installed, which will involve cutting...
      $72.26 - $500.15
    • (11 reviews)
      # sp114642
      Direct Fit OEM Grade Catalytic Converter by Magnaflow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly replace...
      $150.75 - $3,633.21
    • (0 reviews)
      # sp105124
      Standard Grade Direct Fit Catalytic Converter by Flowmaster®. Flowmaster's Standard Grade line of Manifold direct fit catalytic converters are specifically designed to meet or exceed OEM specifications for exact fit and performance, and...
      $160.80 - $1,066.25
    • (1 review)
      # sp124073
      Universal Fit Catalytic Converter by Flowmaster®. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental regulations and, as all Flowmaster products, to deliver the best possible...
      Exceed all federal emission standardsEngineered for Maximum Efficiency
      $125.62 - $252.97
    • (0 reviews)
      # mpn4488951114
      HJS Euro 6 Catalytic Converter by Fabspeed®. Emissions: Racing Only. Converter Configuration: Direct Fit. Meet the strictest of emissions standards while freeing up power with an HJS 300-cell catalyst downpipe. This downpipe is produced...
      $1,495.00
    • (0 reviews)
      # mpn4488951053
      Primary Catalytic Converters with Straight Pipes by Fabspeed®. Emissions: Racing Only. Converter Configuration: Direct Fit. High performance catted downpipes replace the restrictive primary factory catalysts with high flowing 200-cell...
      $2,895.00
    • (0 reviews)
      # mpn4488950903
      Primary Sport Catalytic Converter Downpipes by Fabspeed®. Emissions: Racing Only. Eliminate the heavy and restrictive factory catalytic converters with straight-pipe, high flowing stainless steel downpipes for maximum power and an...
      Replaces the restrictive factory catalytic converters with high flowing 200 cell HJS catalystic converters for inceased throttle response, and a more aggressive exhaust soundConstructed out of T304L stainless steel with CNC machined flanges and laser cut brackets
      $2,995.00
    • (0 reviews)
      # mpn4488950641
      Primary Sport Catalytic Converter Downpipes by Fabspeed®. Emissions: Racing Only. Eliminate the heavy and restrictive factory catalytic converters with straight-pipe, high flowing stainless steel downpipes for maximum power and an...
      Replaces the restrictive factory catalytic converters with high flowing 200 cell HJS catalystic converters for inceased throttle response, and a more aggressive exhaust soundConstructed out of T304L stainless steel with CNC machined flanges and laser cut brackets
      $2,995.00
    • (0 reviews)
      # sp121187
      Sport Catalytic Converter Downpipe by Fabspeed®. High performance catted downpipes replace the restrictive primary factory catalysts with high flowing HJS German imported 200-cell catalytic converters for improved performance and...
      Direct bolt-on replacement; no cutting or welding requiredDesigned to maximize horsepower and torque of your vehicle
      $1,395.00 - $3,495.00
    • (0 reviews)
      # sp121188
      Sport Catalytic Converter X-Pipe by Fabspeed®. Increase horsepower, torque, and sporty exhaust sound by replacing the factory catalytic converters with high-flowing 200-cell HJS Sportcats. Direct replacement for the restrictive factory...
      Constructed from T304L stainless steel tubing, mandrel-bent for accuracy and flowAll Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty
      $2,295.00 - $2,395.00
    • (0 reviews)
      # sp121189
      Sport Catalytic Converters by Fabspeed®. High-flowing, direct bolt-on replacement for the bulky & restrictive factory catalytic converters. Precision machined and hand welded: Fabspeed value quality and durability. This product is made...
      Designed to maximize horsepower and torque of your vehicleMade with meticulous attention to detail and unmatched craftsmanship
      $595.00 - $4,995.00
    • (0 reviews)
      # sp22843
      Direct Fit Catalytic Converter by aFe®. Replace the faulty or old rear catalytic converter with the all new aFe power direct-fit front cat replacement. This cat replacement is constructed of 100% MIG welded stainless steel for strength...
      $161.50 - $570.00
    • (0 reviews)
      # sp124077
      Twisted Steel™ Connection Pipes by aFe®. aFe has designed the performance connection pipes to retain all your factory sensors for a hassle free installation. These performance connection pipes also include 400 cell catalytic...
      $437.00 - $1,073.50
    • (0 reviews)
      # sp28789
      SuperMAXX™ Catted Intermediate Tubes by Dynatech®. SuperMAXX™ Stainless Intermediate Section is an excellent way to complete your exhaust System on your Truck or SUV engine. This system is all about increased power with a full race,...
      T304 Stainless Steel ConstructionHardware Included
      $199.99 - $899.99
    • (0 reviews)
      # sp109933
      High Flow Catalytic Converter by ARK Performance®. The ARK resonated High flow cat test pipe was designed to get the most out of the motor, while keeping the sound and smell down from removing an OEM catalytic converter.
      $475.15 - $730.15
    • (0 reviews)
      # sp3680
      Catalytic Converter Delete Pipe by DC Sports®. DC Sports competition pipes delete the catalytic to eliminate restriction in the exhaust path and are dyno tuned to deliver incredible performance gains for your factory turbocharged vehicle.
      Gives your vehicle a serious performance boostPrecision engineered for your vehicle
      $143.29 - $334.27
    • (0 reviews)
      # sp96104
      Stainless Steel Catted Exhaust Pipe by Kooks®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Kooks will last a...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $545.89




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    Reducing exhaust backpressure and restriction is a traditional method of increasing performance, and like mufflers, catalytic converters do create some restriction. The converter contains a monolithic honeycomb substrate coated with catalyst materials, usually platinum, palladium, and rhodium. As the exhaust gas passes through the honeycomb structure, it is exposed to the catalyst, which causes the oxidation of CO and HC, and reduction of NOx. In the quest for maximum performance, you may be tempted to remove your catalytic converter, but this is a bad idea for many reasons.

    First, it’s against Federal law to remove a catalytic converter and you could be subject to a fine if removal is revealed during a roadside inspection. Second, you’ll fail an emissions test if emissions inspections are required in your area. Third, converter function is an integral part of your vehicle’s engine control system, especially on 1994 and later OBD II vehicles, and you’ll illuminate the CHECK ENGINE light and may experience drivability problems if the converters is removed. Finally, your catalytic converter helps reduce pollution and ensure better air quality, and we all need clean air to breathe for good health. A properly functioning converter will have a minimal effect on exhaust flow, allowing the vehicle to meet emissions requirements and perform to its capabilities.

    However, damage to the catalytic converter substrate caused by engine malfunction or physical contact can create a restriction, impairing exhaust flow and performance. A rich fuel mixture, which could be caused by excessive fuel pressure, defective oxygen sensor, or stuck open thermostat, or unburned fuel in the exhaust caused by engine misfire, can overheat the converter and melt the substrate, obstructing exhaust flow. Shock to the converter housing due to contact with road debris can break the substrate, also resulting in flow restriction. To ensure peak performance and prevent converter defects, maintain your engine in a good state of tune, but if replacement is necessary, our performance catalytic converters will provide optimal exhaust flow and keep your vehicle emissions legal.

    Our performance catalytic converters are designed for high flow so your engine can perform to its maximum capabilities, while maintaining the catalyst efficiency necessary for optimal oxidation and reduction, and they’re built with the heavy-duty construction needed to excel in performance applications. We offer EPA and CARB compliant direct fit and universal converters. Universal converters are available in popular performance pipe diameters. However, a universal converter requires pipe cutting and clamping or welding for attachment, while a direct fit converter will bolt right in place of the factory converter. We have direct fit converters that are part of the pipe assembly or exhaust manifold, as well as converters with headers.

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    Catalytic Converters Reviews

    Average rating:  4.5  4.5 - 273 reviews
    4.5 of 5
    Fits like OEM
    Looks like & fits like OEM ‘02 Hyundai Elantra. Don’t forget the gaskets.
    KPosted by Ken Hebert (Weare, NH) / May 23, 20182002 Hyundai Elantra
    Was this review helpful for you? Yes
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