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
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
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.
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. Cutting and Welding Required
Universal Fit; EPA Enhanced 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. Federal and California Emissions
Universal Fit; EPA Enhanced 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. 2.50 in Inlet ID; 2.50 in Outlet ID Federal and California Emissions
Undercar Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
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. Federal and California Emissions
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. Federal and California Emissions
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. Federal and California Emissions
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
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
Undercar; Without Air Tube 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)
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
Not legal for sale or installation in California, Colorado or New York. Cutting and Welding Required
Undercar Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
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
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
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
Not legal for sale or installation in California, Colorado or New York.
Not legal for sale or installation in California, Colorado or New York.
2.5 in. Inlet/Outlet; Overall L-11.50 in.; W-4 in.; Conv L-11.50 in.; Not Air Tube Kit Adaptable;Not Legal For Sale Or Use On Vehicles Registered In CA Cutting And Welding Required During Installation
Not legal for sale or installation in California, Colorado or New York.
Direct Fit with Single Exhaust ; 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
Undercar 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)
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)
with Federal/California Emissions System Exhaust Gasket is Recommended Additional part(s) needed to complete installation - 31605 and 31578 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 Direct Fit Type
Not legal for use in California Illegal for installation in NY on vehicles equipped with California emission systems Underbody Converter
Not legal for sale or installation in California, Colorado or New York.
Direct Fit
Not legal for sale or installation in California, Colorado or New York.
Direct Fit; 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
Undercar Legal Note: Not For Sale or Use in the State of CA, CO, ME & NY (vehicles with CA Emissions)
Not legal for sale or installation in California, Colorado or New York.
Not legal for use in California
Not legal for sale or installation in California, Colorado or New York.
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.
CARB Executive Order D-193-119 Engine Family Number (EFN) TGM3.1V8GFEK Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-119 Engine Family Number (EFN) WGMXV03.8048 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
Not legal for sale or installation in California, Colorado or New York.
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-193-119 Engine Family Number (EFN) WGMXV03.1043 Engine Family Number (EFN) WGMXV03.1044 Cutting and Welding Required
CARB Executive Order D-193-119 Engine Family Number (EFN) WGMXV03.1044 Engine Family Number (EFN) WGMXV03.1043 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-119 Engine Family Number (EFN) TGM3.1V8GFEK Cutting and Welding Required
CARB Executive Order D-193-119 Engine Family Number (EFN) WGMXV03.8048 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.
Not legal for sale or installation in California, Colorado or New York.
Not legal for sale or installation in California, Colorado or New York.
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-193-150 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
CARB Executive Order D-193-150 Cutting and Welding Required
770 Series 4 in Round Body Engine Family Number (EFN) TGM3.1V8GFEK 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
770 Series 4 in Round Body Engine Family Number (EFN) TGM3.1V8GFEK 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; w/O2 Fitting ALL
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
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-193-150 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-113 Engine Family Number (EFN) TGM3.1V8GFEK Cutting and Welding Required
CARB Executive Order D-193-113 Engine Family Number (EFN) 1GMXV03.8043 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-113 Engine Family Number (EFN) 1GMXV03.8043 Cutting and Welding Required
CARB Executive Order D-193-113 Engine Family Number (EFN) VGM3.1V8G1EK Cutting and Welding Required
CARB Executive Order D-193-113 Engine Family Number (EFN) VGM3.1V8G1EK Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-113 Engine Family Number (EFN) TGM3.1V8GFEK 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) 6GMXV03.5051 Cutting and Welding Required
CARB Executive Order D-193-150 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-150
CARB Executive Order D-193-150
CARB Executive Order D-193-150 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-139 Engine Family Number TGM3.1V8GFEK ; Certification Level : TIER1 OE Spec Cutting and Welding Required During Installation
CARB Executive Order D-193-150
CARB Executive Order D-193-150 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-150
CARB Executive Order D-193-150 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
Optional Extra Precious Metal Loading Type with Federal/California Emissions System Exhaust Gasket is Recommended 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 EX Direct Fit Type
CARB Executive Order D-193-140 Engine Family Number (EFN) 5GMXX03.8148 Cutting and Welding Required Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-140 Engine Family Number (EFN) 5GMXX03.8148 Cutting and Welding Required
CARB Executive Order D-193-142 Engine Family Number (EFN) YGMXV03.8901 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-142 Engine Family Number (EFN) YGMXV03.8901
CARB Executive Order D-193-139 Engine Family Number (EFN) TGM3.1V8GFEK 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) TGM3.1V8GFEK
CARB Executive Order D-193-139 Engine Family Number (EFN) YGMXV03.8043
CARB Executive Order D-193-139 Engine Family Number (EFN) YGMXV03.8043 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) TGM3.4VJGFEK 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) TGM3.4VJGFEK
CARB Executive Order D-193-139 Engine Family Number (EFN) WGMXV03.8048
CARB Executive Order D-193-139 Engine Family Number (EFN) WGMXV03.8048 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) 1GMXV03.8043 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) 1GMXV03.8043
CARB Executive Order D-193-142 Engine Family Number (EFN) 6GMXV05.3084 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-140 Engine Family Number (EFN) 7GMXV05.3084
CARB Executive Order D-193-140 Engine Family Number (EFN) 7GMXV05.3084 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-140 Engine Family Number (EFN) 6GMXV03.9048 Engine Family Number (EFN) 6GMXV03.5050 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-140 Engine Family Number (EFN) 6GMXV03.9048 Engine Family Number (EFN) 6GMXV03.5050
CARB Executive Order D-193-140 Engine Family Number (EFN) 4GMXV03.8042 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-140 Engine Family Number (EFN) 4GMXV03.8042
CARB Executive Order D-193-142 Engine Family Number (EFN) 6GMXV05.3084
CARB Executive Order D-193-142 Engine Family Number (EFN) 6GMXV03.5051 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-142 Engine Family Number (EFN) 3GMXV03.8044 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-142 Engine Family Number (EFN) 6GMXV03.5051
CARB Executive Order D-193-140 Engine Family Number (EFN) 4GMXV03.8042
CARB Executive Order D-193-140 Engine Family Number (EFN) 4GMXV03.8042 Legal For Sale In All 50 States Including California, Colorado and New York (CARB Certified)
CARB Executive Order D-193-142 Engine Family Number (EFN) 3GMXV03.8044
Browse our selection of quality catalytic converter parts designed specifically for your Chevrolet Monte Carlo. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
Base · CL · Indianapolis 500 Pace Car · LS · LS Competition · LS Sport · LT · LTZ · Landau · S · SS · SS 35th Anniversary Edition · SS Dale Earnhardt Signature Edition · SS High Sport · SS Pace Car · Sport · Z34
Coupe
V6 3.1L · V6 3.3L · V6 3.4L · V6 3.5L · V6 3.8L · V6 3.9L · V6 4.3L · V8 4.4L · V8 5.0L · V8 5.3L · V8 5.7L · V8 6.6L · V8 7.4L
Automatic · Manual
