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    • (13 reviews)
      # sp839
      Direct Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with little or...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $202.45 - $1,748.68
    • (0 reviews)
      # sp840
      Direct Fit Catalytic Converter with Header by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust header/manifold...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $376.27 - $1,022.71
    • (5 reviews)
      # sp7279
      Direct Fit Pre-OBDII Driver Side Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $238.99 - $796.77
    • (0 reviews)
      # sp848
      Direct Fit Header with Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust header/manifold...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $376.27 - $1,022.71
    • (29 reviews)
      # sp7280
      Direct Fit Pre-OBDII Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $79.39 - $1,095.80
    • (2 reviews)
      # sp6943
      Exhaust Manifold with Integrated Catalytic Converter by Dorman®. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and hardware for a complete installation. Since this part is a direct...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking
      $168.91 - $780.35
    • (0 reviews)
      # sp21032
      Manifold with Integrated Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: Yes. Inlet Type 2: 6 Bolt Welded Inlet...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $167.52 - $787.20
    • (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...
      Direct fitMade from a heavy duty stainless steel outer shell
      $234.53 - $1,301.21
    • (0 reviews)
      # sp49148
      Direct Fit Catalytic Converter with Integarted Exahust Manifold (Shipping Restrictions) by AP Exhaust®. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts and...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $184.54 - $714.07
    • (17 reviews)
      # sp10058
      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 leader, for the finest emission...
      5 Year / 50,000 Miles Warranty on Structural Components5 Year / 50,000 Miles Warranty on Exhaust Emission (CARB Models)
      $86.48 - $846.42
    • (12 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 - $789.48
    • (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
      $38.88 - $267.25
    • (9 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
    • (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
      $18.21 - $707.98
    • (16 reviews)
      # sp4410
      Exhaust Hanger by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories, you...
      Makes installation quick and easyOptimal OE-style fit and quality
      $0.37 - $61.01




    Cadillac STS Performance Catalytic Converters Reviews

    Average rating:  4.5  4.5 - 1 review
    4.3 of 5
    Fits Like a Glove
    Great product. Better than O.E.M. Did not have to adjust anything with exhaust pipes to make this fit. I would suggest buying the gasket between Manifold and catalytic converter. Does not come with this kit. I rate the ease of installation low because it's very difficult to get to on my Cadillac.
    RPosted by Randi (Frisco, TX) / November 13, 2014
    2006 Cadillac STS
    Was this review helpful for you? Yes
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