Universal Fit; Pre-OBDII Standard Duty Unit Not for sale or use on vehicles licensed in the states of CA, CO, ME, and NY. Restrictions may apply in other states. Check with your state authority for details. Federal and California Emissions
Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required
without Air Tube with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
Cutting and Welding Required
Cutting and Welding Required
Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required
Cutting and Welding Required Not legal for sale or installation in California, Colorado or New York.
Not legal for sale or installation in California, Colorado or New York.
Cutting and Welding Required
Cutting and Welding Required During Installation
Cutting and Welding Required
Not legal for sale or installation in California, Colorado or New York.
Cutting and Welding Required Not legal for sale or installation in California, Colorado or New York.
CARB Executive Order D-193-150 Cutting and Welding Required
Cutting and Welding Required
CARB Executive Order D-193-150 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
Undercar; With O2 Ports Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
CARB Executive Order D-193-139 Engine Family Number (EFN) 2FMXV03.9VF5
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Universal Type Modifications and/or Additional Parts May Be Required for Installation
CARB Executive Order D-193-139 Engine Family Number (EFN) 2FMXV03.9VF5 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Universal Type Modifications and/or Additional Parts May Be Required for Installation
Cutting and Welding Required
Cutting and Welding Required Not legal for sale or installation in California, Colorado or New York.
Cutting and Welding Required
Universal Fit; Select+Plus Not for sale or use on vehicles licensed in the states of CA, CO, ME, and NY. Restrictions may apply in other states. Check with your state authority for details. Federal and California Emissions
Cutting and Welding Required
Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required
Cutting and Welding Required
Cutting and Welding Required
CARB Executive Order D-193-102 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-102 Cutting and Welding Required
Not legal for sale or installation in California, Colorado or New York.
CARB Executive Order D-193-97 Engine Family Number (EFN) RFM4.6V8G1EK Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-96 Engine Family Number (EFN) 4FMXV03.91H5 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-96 Engine Family Number (EFN) 2FMXV03.9VF5 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-96 Engine Family Number (EFN) 2FMXV03.9VF5 Cutting and Welding Required
Not legal for sale or installation in California, Colorado or New York.
CARB Executive Order D-193-97 Engine Family Number (EFN) RFM4.6V8G1EK Cutting and Welding Required
CARB Executive Order D-193-96 Engine Family Number (EFN) 4FMXV03.91H5 Cutting and Welding Required
CARB Executive Order D-193-150 Cutting and Welding Required
CARB Executive Order D-193-150 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-150 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-150 Cutting and Welding Required
770 Series 4 in Round Body Engine Family Number (EFN) 4FMXV03.91H5 CARB Executive Order D-798-10 ; Universal Fit - CARB Legal Note: In Compliance with CARB Emissions Requirements 2.25 in Inlet ID; 2.25 in Outlet ID ALL
CARB Executive Order D-193-150 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-150 Cutting and Welding Required
CARB Executive Order D-193-113 Engine Family Number (EFN) 2FMXV03.9VF5 Cutting and Welding Required
CARB Executive Order D-193-113 Engine Family Number (EFN) 2FMXV03.9VF5 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-114 Engine Family Number (EFN) 5FMXV03.91H5 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-114 Engine Family Number (EFN) 5FMXV03.91H5 Cutting and Welding Required
CARB Executive Order D-193-139 Engine Family Number (EFN) 2FMXV03.9VF5 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-139 Engine Family Number (EFN) 2FMXV03.9VF5
with Federal/California Emissions System Not legal for sale or use in California and other CARB-compliant states. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Standard Universal Type Modifications and/or Additional Parts May Be Required for Installation
Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required
Cutting and Welding Required
Cutting and Welding Required
Universal Fit; EPA OBDII By Design Unit Not for sale or use on vehicles licensed in the states of CA, CO, ME, and NY. Restrictions may apply in other states. Check with your state authority for details. w/Post Conv. O2 Sensor, Federal and California Emissions
Undercar Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
Cutting and Welding Required Not legal for sale or installation in California, Colorado or New York.
Standard Series; 2.25 in. Tubing/Inlet/Outlet; Overall L-13.00 in.; Air Tube Preinstalled;Not Legal For Sale Or Use On Vehicles Registered In CA Short Oval~Universal Federal [Exc. CA]
Cutting and Welding Required
Cutting and Welding Required
Cutting and Welding Required
Cutting and Welding Required Not legal for sale or installation in California, Colorado or New York.
Main and Pre-Converter Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required
Cutting and Welding Required Main and Pre-Converter
Undercar; 3 Converter System Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
Undercar Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
Cutting and Welding Required
Cutting and Welding Required Not legal for sale or installation in California, Colorado or New York.
Main and Pre-Converter Cutting and Welding Required Not legal for sale or installation in California, Colorado or New York.
Cutting and Welding Required Main and Pre-Converter
Cutting and Welding Required
Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required
Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required
Cutting and Welding Required
Cutting and Welding Required Not legal for sale or installation in California, Colorado or New York.
Not legal for sale or installation in California, Colorado or New York.
CARB Executive Order D-193-102 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-102 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-102 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-102 Cutting and Welding Required
Not legal for sale or installation in California, Colorado or New York.
CARB Executive Order D-193-102 Cutting and Welding Required
CARB Executive Order D-193-102 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-102 Cutting and Welding Required
CARB Executive Order D-193-102 Cutting and Welding Required
CARB Executive Order D-193-102 Cutting and Welding Required
CARB Executive Order D-193-102 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-102 Cutting and Welding Required
CARB Executive Order D-193-102 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-102 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-102 Cutting and Welding Required
CARB Executive Order D-193-102 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-102 Cutting and Welding Required
Main and Pre-Converter Not legal for sale or installation in California, Colorado or New York.
Standard Series; Overall L-21.50 in.; O2 Sensor Location Pre/Post Convt; Air Tube Preinstalled;Not Legal For Sale Or Use On Vehicles Registered In CA Main + Pre-Converter
without Air Tube CARB Executive Order D-193-102 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
without Air Tube CARB Executive Order D-193-102
CARB Executive Order D-193-97 Engine Family Number (EFN) RFM4.6V8G1EK Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-97 Engine Family Number (EFN) RFM4.6V8G1EK Cutting and Welding Required
Federal, 47-State Only, Not legal for sale in CA, NY or ME Direct Fit
CARB Executive Order D-193-150 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-150 Cutting and Welding Required
Not legal for sale or installation in California, Colorado or New York.
Undercar Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
CARB Executive Order D-193-150 Cutting and Welding Required
CARB Executive Order D-193-150 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
From 2003-09-30
From 2003-09-30 Not legal for sale or installation in California, Colorado or New York.
From 2003-09-30 Not legal for sale or installation in California, Colorado or New York.
From 2003-09-30
Not legal for sale or installation in California, Colorado or New York.
Not legal for sale or installation in California, Colorado or New York.
CARB Executive Order D-193-96 Engine Family Number (EFN) TFM3.8V8G1FK
CARB Executive Order D-193-96 Engine Family Number (EFN) TFM3.8V8G1FK Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-97 Engine Family Number (EFN) RFM4.6V8G1EK Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-97 Engine Family Number (EFN) RFM4.6V8G1EK
CARB Executive Order D-193-142 Engine Family Number (EFN) 5FMXV03.91H5
CARB Executive Order D-193-142 Engine Family Number (EFN) 5FMXV03.91H5 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
Browse our selection of quality catalytic converter parts designed specifically for your Ford Thunderbird. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
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