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Shop By Brand

The Following brands are available based on your search.

  • Bosal
    Bosal
  • DEC
    DEC
  • Davico Converters
    Davico Converters
  • Eastern Catalytic
    Eastern Catalytic
  • Magnaflow
    Magnaflow
  • Walker
    Walker

Best Selling Genuine Porsche Catalytic Converters

  • We Stock the following top leading brands, including DEC, Bosal, Eastern Catalytic, Walker
  • Constantly Updated Inventory of Porsche Replacement Catalytic Converter Parts

We stock Catalytic Converter parts for most Porsche models, including Boxster, Cayenne, Panamera, 911, 914, 924, 928, 930, 944, 968.

DEC
1983 Porsche 911 Catalytic Converter 6 Cyl 3.0L DEC - 50 State Legal

P311-34070AB    W0133-1917483  New

Qty:
$648.86
DEC Catalytic Converter
  • CARB Compliant Direct Fit
  • C.A.R.B Compliant - California - Pre-OBDII
  • California C.A.R.B Compliant - Legal for sale and use in all 50 states...
  • 50 State Legal
Brand: DEC
Additional Fitment Information:
Vehicle Block Engine CID CC
1983 - Porsche 911 H 6 Cyl 3.0L - 2999
Bosal
1977 Porsche 924 Catalytic Converter Bosal

P311-4D553F2    W0133-1604676  New

Qty:
$164.99
Bosal Catalytic Converter
  • EPA Standard Load Direct Fit
  • w/o O2 Sensor Hole (Two, 3 Bolt Flanges)

    EPA Compliant - (48-State & Canada) EPA Tier 0 & Tier 1 emission use.
  • EPA Federal Compliant - Standard Grade Catalyst - Not Legal for sale or use in California. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only.
Brand: Bosal
Additional Fitment Information:
Vehicle
1977 - Porsche 924
Bosal
1977 Porsche 924 Catalytic Converter Bosal

P311-4D553F2    W0133-1604676  New

Qty:
$164.99
Bosal Catalytic Converter
  • EPA Standard Load Direct Fit
  • w/o O2 Sensor Hole (Two, 3 Bolt Flanges)

    EPA Compliant - (48-State & Canada) EPA Tier 0 & Tier 1 emission use.
  • EPA Federal Compliant - Standard Grade Catalyst - Not Legal for sale or use in California. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only.
Brand: Bosal
Additional Fitment Information:
Vehicle
1977 - Porsche 924
Eastern Catalytic
1975 Porsche 911 Catalytic Converter 6 Cyl 2.7L Eastern Catalytic - UNIVERSAL

P311-0368AFA    70316  New

Qty:
$50.29
Eastern Catalytic Catalytic Converter
  • Federal / EPA Semi-Universal Converter - Standard
  • Undercar Legal Note: Not For Sale or Use in the state of CA/NY & Maine (vehicles with California Emissions)
  • UNIVERSAL
  • Product Attributes:
    • Air Tube Qty: None
    • Body Length (IN): 10"
    • Catalyst Type: Standard
    • Inlet Gasket Qty: None
    • Inlet Hardware: None
    • Inlet Type A: 2.00" Id
    • O2 Sensor Ports: None
    • Outlet Gasket Qty: None
    • Outlet Hardware: None
    • Outlet Type A: 2.00" Id
    • Overall Length (IN): 14"
    • Shape: Oval
    • Test Weight: 5.9 / 6000
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Additional Fitment Information:
Vehicle Block Engine CID CC
1975 - Porsche 911 H 6 Cyl 2.7L - 2688
Eastern Catalytic
1978 Porsche 924 Catalytic Converter 4 Cyl 2.0L Eastern Catalytic - UNIVERSAL

P311-50101A9    70317  New

Qty:
$50.29
Eastern Catalytic Catalytic Converter
  • Federal / EPA Semi-Universal Converter - Standard
  • Undercar Legal Note: Not For Sale or Use in the state of CA/NY & Maine (vehicles with California Emissions)
  • UNIVERSAL
  • Product Attributes:
    • Air Tube Qty: None
    • Body Length (IN): 10"
    • Catalyst Type: Standard
    • Inlet Gasket Qty: None
    • Inlet Hardware: None
    • Inlet Type A: 2.25" Id
    • O2 Sensor Ports: None
    • Outlet Gasket Qty: None
    • Outlet Hardware: None
    • Outlet Type A: 2.25" Id
    • Overall Length (IN): 14"
    • Shape: Oval
    • Test Weight: 5.9 / 6000
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Additional Fitment Information:
Vehicle Block Engine CID CC
1978 - Porsche 924 L 4 Cyl 2.0L - 1983
Eastern Catalytic
1984 Porsche 911 Catalytic Converter 6 Cyl 3.2L Eastern Catalytic - UNIVERSAL

P311-53813DF    70535  New

Qty:
$75.13
Eastern Catalytic Catalytic Converter
  • Federal / EPA Semi-Universal Converter - Standard
  • Undercar Legal Note: Not For Sale or Use in the state of CA/NY & Maine (vehicles with California Emissions)
  • UNIVERSAL
  • Product Attributes:
    • Air Tube Qty: None
    • Body Length (IN): 12"
    • Catalyst Type: Standard
    • Inlet Gasket Qty: None
    • Inlet Hardware: None
    • Inlet Type A: 2.50" Id
    • Outlet Gasket Qty: None
    • Outlet Hardware: None
    • Outlet Type A: 2 X 2.00" Id
    • Overall Length (IN): 16"
    • Shape: Large Oval
    • Test Weight: 5.9 / 6000
  • Latest advanced-manufacturing technology, including automated workstations, spinner welding equipment, and high-speed production lines ensures that all converters are built to exact OE dimensions and fitment. This technology also helps to maintain industry-leading efficiency, productivity, and competitive prices. The proprietary NANO substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency.
Brand: Eastern Catalytic
Additional Fitment Information:
Vehicle Block Engine CID CC
1984 - Porsche 911 H 6 Cyl 3.2L - 3163
Walker
Qty:
$68.61
Walker Catalytic Converter
  • Fits Fed. & Calif. Emiss. Models.; Modifications and/or Additional Parts Required.
  • Walker EPA Standard Universal Converter
  • Product Attributes:
    • Body Height: 4.250
    • Body Length: 10.000
    • Body Shape: Small Oval
    • Body Width: 6.125
    • Fitment: Universal
    • Inlet Connection Type: Pipe Connection
    • Inlet Diameter 1: 2.000
    • Inlet Diameter Designation: Inside Diameter
    • Max Year Covered: 1998
    • Maximum Engine Size: 5.9l
    • Maximum Test Weight: 8500
    • Min Year Covered: 1975
    • Most Popular Make / Model: Toyota Pickup
    • Most Popular Year: 1994
    • Outlet Connection Type: Pipe Connection
    • Outlet Diameter 1: 2.000
    • Outlet Diameter Designation: Inside Diameter
    • Overall Length: 13.250
    • Oxygen sensor location: No Port Location
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 2789942
Brand: Walker
Additional Fitment Information:
Vehicle Block Engine CID CC
1975 - Porsche 914 H 4 Cyl 1.8L - 1795
Walker
Qty:
$78.50
Walker Catalytic Converter
  • Fits Fed. & Calif. Emiss. Models.; Modifications and/or Additional Parts Required.
  • Walker EPA Standard Universal Converter
  • Product Attributes:
    • Body Height: 4.250
    • Body Length: 10.000
    • Body Shape: Small Oval
    • Body Width: 6.125
    • Fitment: Universal
    • Inlet Connection Type: Pipe Connection
    • Inlet Diameter 1: 2.250
    • Inlet Diameter Designation: Inside Diameter
    • Max Year Covered: 2002
    • Maximum Engine Size: 5.9l
    • Maximum Test Weight: 8500
    • Min Year Covered: 1975
    • Most Popular Make / Model: Ford Ranger
    • Most Popular Year: 1994
    • Outlet Connection Type: Pipe Connection
    • Outlet Diameter 1: 2.250
    • Outlet Diameter Designation: Inside Diameter
    • Overall Length: 13.250
    • Oxygen sensor location: No Port Location
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 2565204
Brand: Walker
Additional Fitment Information:
Vehicle Block Engine CID CC
1975 - Porsche 911 H 6 Cyl 2.7L - 2688
Walker
Qty:
$78.50
Walker Catalytic Converter
  • w/o Air Tube; Fits Fed. & Calif. Emiss. Models.; Modifications and/or Additional Parts Required.
  • Walker EPA Standard Universal Converter
  • Product Attributes:
    • Body Height: 4.250
    • Body Length: 10.000
    • Body Shape: Small Oval
    • Body Width: 6.125
    • Fitment: Universal
    • Inlet Connection Type: Pipe Connection
    • Inlet Diameter 1: 2.250
    • Inlet Diameter Designation: Inside Diameter
    • Max Year Covered: 2002
    • Maximum Engine Size: 5.9l
    • Maximum Test Weight: 8500
    • Min Year Covered: 1975
    • Most Popular Make / Model: Ford Ranger
    • Most Popular Year: 1994
    • Outlet Connection Type: Pipe Connection
    • Outlet Diameter 1: 2.250
    • Outlet Diameter Designation: Inside Diameter
    • Overall Length: 13.250
    • Oxygen sensor location: No Port Location
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 2565204
Brand: Walker
Additional Fitment Information:
Vehicle Block Engine CID CC
1984 - Porsche 911 H 6 Cyl 3.2L - 3163
Bosal
Qty:
$195.86
Bosal Catalytic Converter  Rear
  • Volkswagen Touareg 2006-04
  • Bosal Federal Direct-Fit Standard Load OBDII Catalytic Converter
Brand: Bosal
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2004 - Porsche Cayenne Rear V 6 Cyl 3.2L 195 3189
Walker
Qty:
$78.50
Walker Catalytic Converter
  • Fits Fed. & Calif. Emiss. Models.; Modifications and/or Additional Parts Required.
  • Walker EPA Standard Universal Converter
  • Product Attributes:
    • Body Height: 4.250
    • Body Length: 10.000
    • Body Shape: Small Oval
    • Body Width: 6.125
    • Fitment: Universal
    • Inlet Connection Type: Pipe Connection
    • Inlet Diameter 1: 2.500
    • Inlet Diameter Designation: Inside Diameter
    • Max Year Covered: 2006
    • Maximum Engine Size: 5.9l
    • Maximum Test Weight: 8500
    • Min Year Covered: 1975
    • Most Popular Make / Model: Ford Ranger
    • Most Popular Year: 1994
    • Outlet Connection Type: Pipe Connection
    • Outlet Diameter 1: 2.500
    • Outlet Diameter Designation: Inside Diameter
    • Overall Length: 13.250
    • Oxygen sensor location: No Port Location
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 1976831
Brand: Walker
Additional Fitment Information:
Vehicle Aspiration Block Engine CID CC
1986 - Porsche 944 Turbocharged L 4 Cyl 2.5L - 2475
Walker
Qty:
$76.72
Walker Catalytic Converter
  • Fits Fed. & Calif. Emiss. Models.; Modifications and/or Additional Parts Required.
  • Walker EPA Standard Universal Converter
  • Product Attributes:
    • Body Height: 5.000
    • Body Length: 8.250
    • Body Width: 5.000
    • Fitment: Universal
    • Inlet Connection Type: Pipe Connection
    • Inlet Diameter 1: 2.000
    • Inlet Diameter Designation: Inside Diameter
    • Max Year Covered: 1995
    • Maximum Engine Size: 4.3l
    • Maximum Test Weight: 4640
    • Min Year Covered: 1975
    • Most Popular Make / Model: Honda Civic
    • Most Popular Year: 1995
    • Outlet Connection Type: Pipe Connection
    • Outlet Diameter 1: 2.000
    • Outlet Diameter Designation: Inside Diameter
    • Overall Length: 11.500
    • Oxygen sensor location: No Port Location
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 142582
Brand: Walker
Additional Fitment Information:
Vehicle Block Engine CID CC
1983 - Porsche 944 L 4 Cyl 2.5L - 2475
DEC
2005 Porsche 911 Catalytic Converter 6 Cyl 3.6L DEC

P311-14B99CA    PO92621P  New

Qty:
$500.76
DEC Catalytic Converter
  • Passenger Side Rear Engine Family Number : 5PRXV03.6996 Tier Lev : LEV1 LEV California Legal
Brand: DEC
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Porsche 911 H 6 Cyl 3.6L - 3606
DEC
2005 Porsche 911 Catalytic Converter 6 Cyl 3.6L DEC

P311-14B99CA    PO92621P  New

Qty:
$500.76
DEC Catalytic Converter
  • Passenger Side Rear Engine Family Number : 5PRXV03.6GT3 Tier Lev : LEV1 LEV California Legal
Brand: DEC
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Porsche 911 H 6 Cyl 3.6L - 3606
DEC
2005 Porsche 911 Catalytic Converter 6 Cyl 3.6L DEC

P311-14B99CA    PO92621P  New

Qty:
$500.76
DEC Catalytic Converter
  • Passenger Side Rear Engine Family Number : 5PRXV03.6TUR Tier Lev : LEV1 LEV California Legal
Brand: DEC
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Porsche 911 H 6 Cyl 3.6L - 3606
DEC
2005 Porsche 911 Catalytic Converter 6 Cyl 3.6L DEC

P311-14B99CA    PO92621P  New

Qty:
$500.76
DEC Catalytic Converter
  • Passenger Side Rear Engine Family Number : 5PRXV03.8997 Tier Lev : LEV1 LEV California Legal
Brand: DEC
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Porsche 911 H 6 Cyl 3.6L - 3606
DEC
2004 Porsche 911 Catalytic Converter 6 Cyl 3.6L DEC

P311-14B99CA    PO92621P  New

Qty:
$500.76
DEC Catalytic Converter
  • Passenger Side Rear Engine Family Number : 4PRXV03.6996 Tier Lev : LEV1 LEV California Legal
Brand: DEC
Additional Fitment Information:
Vehicle Block Engine CID CC
2004 - Porsche 911 H 6 Cyl 3.6L - 3606
DEC
2004 Porsche 911 Catalytic Converter 6 Cyl 3.6L DEC

P311-14B99CA    PO92621P  New

Qty:
$500.76
DEC Catalytic Converter
  • Passenger Side Rear Engine Family Number : 4PRXV03.6GT3 Tier Lev : LEV1 LEV California Legal
Brand: DEC
Additional Fitment Information:
Vehicle Block Engine CID CC
2004 - Porsche 911 H 6 Cyl 3.6L - 3606
DEC
2004 Porsche 911 Catalytic Converter 6 Cyl 3.6L DEC

P311-14B99CA    PO92621P  New

Qty:
$500.76
DEC Catalytic Converter
  • Passenger Side Rear Engine Family Number : 4PRXV03.6TUR Tier Lev : LEV1 LEV California Legal
Brand: DEC
Additional Fitment Information:
Vehicle Block Engine CID CC
2004 - Porsche 911 H 6 Cyl 3.6L - 3606
DEC
2003 Porsche 911 Catalytic Converter 6 Cyl 3.6L DEC

P311-14B99CA    PO92621P  New

Qty:
$500.76
DEC Catalytic Converter
  • Passenger Side Rear Engine Family Number : 3PRXV03.6996 Tier Lev : LEV1 LEV California Legal
Brand: DEC
Additional Fitment Information:
Vehicle Block Engine CID CC
2003 - Porsche 911 H 6 Cyl 3.6L - 3606