DEC Catalytic Converters

DEC
  • DEC® - Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Direct Fit Catalytic Converter and Pipe Assembly (W0133-1851047-DEC)
    0
    # mpn949865
    Catalytic Converter and Pipe Assembly (W0133-1851047-DEC) by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature again. These catalytic...
    $1,005.11
  • DEC® - Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Direct Fit Catalytic Converter and Pipe Assembly (W0133-1793284-DEC)
    0
    # mpn949862
    Catalytic Converter and Pipe Assembly (W0133-1793284-DEC) by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature again. These catalytic...
    $1,019.35
  • DEC® - Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Direct Fit Catalytic Converter and Pipe Assembly (W0133-1917483-DEC)
    0
    # mpn948431
    Catalytic Converter and Pipe Assembly (W0133-1917483-DEC) by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature again. These catalytic...
    $699.17
  • DEC® - Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Direct Fit Catalytic Converter and Pipe Assembly (W0133-1903138-DEC)
    0
    # mpn948424
    Catalytic Converter and Pipe Assembly (W0133-1903138-DEC) by DEC®. Converter Configuration: Direct Fit. With O2 Sensor Port in Headpipe. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about...
    $699.57
  • DEC® - Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Direct Fit Catalytic Converter and Pipe Assembly (W0133-1939919-DEC)
    0
    # mpn947606
    Catalytic Converter and Pipe Assembly (W0133-1939919-DEC) by DEC®. Converter Configuration: Direct Fit. Position: Driver Side. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature...
    $943.26
  • DEC® - Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Direct Fit Catalytic Converter and Pipe Assembly (W0133-1926873-DEC)
    0
    # mpn947597
    Catalytic Converter and Pipe Assembly (W0133-1926873-DEC) by DEC®. Converter Configuration: Direct Fit. Position: Rear. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature again....
    $435.87
  • DEC® - Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Direct Fit Catalytic Converter and Pipe Assembly (W0133-1918140-DEC)
    0
    # mpn947583
    Catalytic Converter and Pipe Assembly (W0133-1918140-DEC) by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature again. These catalytic...
    $668.81
  • DEC® - Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Direct Fit Catalytic Converter and Pipe Assembly (W0133-1922597-DEC)
    0
    # mpn946792
    Catalytic Converter and Pipe Assembly (W0133-1922597-DEC) by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature again. These catalytic...
    $597.35
  • DEC® - Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Direct Fit Catalytic Converter and Pipe Assembly (W0133-1913355-DEC)
    0
    # mpn946782
    Catalytic Converter and Pipe Assembly (W0133-1913355-DEC) by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature again. These catalytic...
    $540.00
  • DEC® - Premium Load Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Premium Load Direct Fit Catalytic Converter and Pipe Assembly (W0133-1950273-DEC)
    0
    # mpn221361706
    Premium Load Catalytic Converter and Pipe Assembly (W0133-1950273-DEC) by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying about feature again....
    $546.50
  • DEC® - Premium Load Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Premium Load Direct Fit Catalytic Converter and Pipe Assembly (W0133-1907860-DEC)
    0
    # mpn955871
    Premium Load Catalytic Converter and Pipe Assembly (W0133-1907860-DEC) by DEC®. Converter Configuration: Direct Fit. Position: Passenger Side. Pick out a catalytic converter by DEC and get your emissions back into check without worrying...
    $958.60
  • DEC® - Premium Load Direct Fit Catalytic Converter and Pipe Assembly
    DEC®Premium Load Direct Fit Catalytic Converter and Pipe Assembly (W0133-1907859-DEC)
    0
    # mpn955870
    Premium Load Catalytic Converter and Pipe Assembly (W0133-1907859-DEC) by DEC®. Converter Configuration: Direct Fit. Position: Driver Side. Pick out a catalytic converter by DEC and get your emissions back into check without worrying...
    $985.47
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1948070-DEC)
    0
    # mpn4919460666
    Exhaust Manifold with Integrated Catalytic Converter by DEC®. Position: Front Passenger Side. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature...
    Direct fitDesigned for everlasting durability
    $1,158.26
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1970984-DEC)
    0
    # mpn4919460589
    Exhaust Manifold with Integrated Catalytic Converter (W0133-1970984-DEC) by DEC®. Position: Passenger Side. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying...
    Direct fitDesigned for everlasting durability
    $1,136.42
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1892725-DEC)
    0
    # mpn4828736679
    Exhaust Manifold with Integrated Catalytic Converter by DEC®. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature again. The Integrated Catalytic...
    Direct fitDesigned for everlasting durability
    $1,055.98
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1922570-DEC)
    0
    # mpn4828736409
    Exhaust Manifold with Integrated Catalytic Converter by DEC®. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature again. The Integrated Catalytic...
    Direct fitDesigned for everlasting durability
    $957.03
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1922564-DEC)
    0
    # mpn4828736095
    Exhaust Manifold with Integrated Catalytic Converter by DEC®. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature again. The Integrated Catalytic...
    Direct fitDesigned for everlasting durability
    $1,268.72
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-2578977-DEC)
    0
    # mpn4828735821
    Exhaust Manifold with Integrated Catalytic Converter (W0133-2578977-DEC) by DEC®. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature again. The...
    Direct fitDesigned for everlasting durability
    $761.13
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1846325-DEC)
    0
    # mpn4828735809
    Exhaust Manifold with Integrated Catalytic Converter (W0133-1846325-DEC) by DEC®. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature again. The...
    Direct fitDesigned for everlasting durability
    $993.93
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1951065-DEC)
    0
    # mpn4828735677
    Exhaust Manifold with Integrated Catalytic Converter (W0133-1951065-DEC) by DEC®. Position: Driver Side. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying...
    Direct fitDesigned for everlasting durability
    $802.09
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1943599-DEC)
    0
    # mpn4828735366
    Exhaust Manifold with Integrated Catalytic Converter by DEC®. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature again. The Integrated Catalytic...
    Direct fitDesigned for everlasting durability
    $1,026.51
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1922333-DEC)
    0
    # mpn4828734729
    Exhaust Manifold with Integrated Catalytic Converter (W0133-1922333-DEC) by DEC®. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature again. The...
    Direct fitDesigned for everlasting durability
    $1,083.77
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1922310-DEC)
    0
    # mpn4828734716
    Exhaust Manifold with Integrated Catalytic Converter by DEC®. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature again. The Integrated Catalytic...
    Direct fitDesigned for everlasting durability
    $834.44
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-2291919-DEC)
    0
    # mpn4828734259
    Exhaust Manifold with Integrated Catalytic Converter (W0133-2291919-DEC) by DEC®. Position: Front Passenger Side. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without...
    Direct fitDesigned for everlasting durability
    $671.55
  • DEC® - Exhaust Manifold with Integrated Catalytic Converter
    DEC®Exhaust Manifold with Integrated Catalytic Converter (W0133-1980378-DEC)
    0
    # mpn4828734248
    Exhaust Manifold with Integrated Catalytic Converter (W0133-1980378-DEC) by DEC®. Pick out an Exhaust Manifold with Integrated Catalytic Converter by DEC and get your emissions back into check without worrying about feature again. The...
    Direct fitDesigned for everlasting durability
    $1,073.37
  • DEC® - Exhaust Y-Pipe
    DEC®Exhaust Y-Pipe
    1
    # sp9260
    Exhaust Y-Pipe by DEC®. Durably built and precisely formed, DEC exhaust pipes deliver a proper fit and excellent exhaust system performance. They help to funnel poisonous and toxic fumes generated by the engine away from a vehicle....
    Helps to funnel poisonous fumes away from a vehicleEngineered to provide excellent performance
    $224.46
  • DEC® - Exhaust Flex and Pipe Assembly
    DEC®Exhaust Flex and Pipe Assembly
    0
    # sp132517
    Exhaust Flex and Pipe Assembly by DEC®. Durably built and precisely formed, DEC exhaust pipes deliver a proper fit and excellent exhaust system performance. They help to funnel poisonous and toxic fumes generated by the engine away from...
    Helps to funnel poisonous fumes away from a vehicleEngineered to provide excellent performance
    $96.20
  • DEC® - Exhaust Flex and Pipe Assembly
    DEC®Exhaust Flex and Pipe Assembly (SA2945)
    0
    # mpn615930003
    Exhaust Flex and Pipe Assembly by DEC®. Location: Catalytic Converter to Intermediate Pipe. Without Catalytic Converter. Durably built and precisely formed, DEC exhaust pipes deliver a proper fit and excellent exhaust system...
    Helps to funnel poisonous fumes away from a vehicleEngineered to provide excellent performance
    $96.20
  • DEC® - Exhaust Tailpipe
    DEC®Exhaust Tailpipe (CR20911)
    0
    # mpn4794800424
    Exhaust Tailpipe by DEC®. Durably built and precisely formed, DEC exhaust pipes deliver a proper fit and excellent exhaust system performance. They help to funnel poisonous and toxic fumes generated by the engine away from a vehicle....
    Helps to funnel poisonous fumes away from a vehicleEngineered to provide excellent performance
    $137.77
  • DEC® - Exhaust Y-Pipe with Resonator
    DEC®Exhaust Y-Pipe with Resonator (LX4613Z)
    1
    # mpn4794800537
    Exhaust Y-Pipe with Resonator by DEC®. Without Catalytic Converter. Durably built and precisely formed, DEC exhaust pipes deliver a proper fit and excellent exhaust system performance. They help to funnel poisonous and toxic fumes...
    Helps to funnel poisonous fumes away from a vehicleEngineered to provide excellent performance
    $224.46




For over twenty-six years DEC has been manufacturing a wide assortment of replacement catalytic converters which perform efficiently and correctly. The company also offers premium DEC headers, tailpipes, exhaust pipes, and more. All products by DEC are assembled in dedicated Steel Jigs utilizing heavily loaded substrates, heavy duty tubing, silent flex tubes, etc. DEC's unique concept of Steel Jigs for every model insures repeatability and perfect fit.

The DEC catalytic converter features high quality and provide unparalleled performance. The company offers replacement catalytic converters for various applications, including domestic ones. Domestic vehicles are not foreign to the company. DEC's specialty OBDII domestic catalytic converters are the parts that fit and perform up to the mark, and the company's long lasting warranty insures that a customer gets a cost efficient long term solution.

The company has been the innovator of many things. It was the first to design direct fit catalytic converters. Carrying on a tradition of being first, the company is the first and only to feature a Cross-Marketing agreement approved by C.A.R.B. DEC presents the most comprehensive line of C.A.R.B. exempt, direct fit converters in the industry. These catalytic converters mimic the OEM part and ensure no welding involved in the installation process, just an easy bolt-on application. When utilizing a universal converter, you can't be sure that it will fit your specific vehicle precisely.

Knowing what car, truck or SUV a part is being installed, DEC is the only company in the industry that provides TSB's and Tech Notes which you can use for your personal vehicle. Having years of manifold mount and close coupled experience, DEC is also considered to be a manifold converter specialist. Because of the location of the manifold converters, they require additional engineering to provide accuracy and longevity. The products of the company have been and are specifically designed and manufactured to comply to all specifications as they relate to emission performance requirements prescribed by the CARB and the EPA.

DEC Reviews

23 reviews
4 of 5
Fit
Part meet California standards, but I don't know if was mishandled by the transport carrier, when I trying to install it the left tip towards the header didn't fit by almost one inch, so it cost me a 100.00 at a muffler shop have them to correct the pipe and make fit.
Posted by Customer / June 19, 20211994 Ford Mustang
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