{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
2014 Chevrolet Cruze

2014 Chevrolet Cruze Catalytic Converters

Refine by:

Shop Catalog

Showing 1 - 15 of 67 results
Display item:
15
30
45
Sort by:
Front Direct Replacement Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: JC96030007
Guaranteed to Fit
$224.99
Vehicle Fitment
  • 2014 Chevrolet Cruze LS 4 Cyl 1.8L Manifold Converter
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 20 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : 1 Sensor PortOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Replaces OE Number : 55573030, 25197189Interchange Part Number : 19522, 641449, 16657, 50511, 55573030, 25197189Series : Direct Replacement SeriesTube Material : Stainless Steel
Front Catalytic Converter, 4 Cyl., 1.4L Engine, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), Aluminized Steel
Part Number: RC96030006
Guaranteed to Fit
$176.49
Vehicle Fitment
  • 2014 Chevrolet Cruze LT 4 Cyl 1.4L
  • 2014 Chevrolet Cruze LTZ 4 Cyl 1.4L
  • 2014 Chevrolet Cruze Eco 4 Cyl 1.4L
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 14 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : 1 Sensor PortOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Replaces OE Number : 55578984Interchange Part Number : 50509, 55578984Series : Direct Replacement SeriesTube Material : Aluminized Steel
Front Catalytic Converter, 4 Cyl., 1.8L Engine, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), Stainless Steel
Part Number: RC96030007
Guaranteed to Fit
$224.99
Vehicle Fitment
  • 2014 Chevrolet Cruze LS 4 Cyl 1.8L Direct Fit; Manifold Unit
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 20 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : 1 Sensor PortOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Replaces OE Number : 55573030, 25197189Interchange Part Number : 641449, 55573030, 25197189Series : Direct Replacement SeriesTube Material : Stainless Steel
Front Catalytic Converter, 1.4L Engine, 4 Cylinder, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), Turbocharged, Pre Cat
Part Number: DAV19518
Guaranteed to Fit
$362.49
Vehicle Fitment
  • 2014 Chevrolet Cruze LT 4 Cyl 1.4L Turbocharged, Pre Cat
  • 2014 Chevrolet Cruze LTZ 4 Cyl 1.4L Turbocharged, Pre Cat
  • 2014 Chevrolet Cruze Eco 4 Cyl 1.4L Turbocharged, Pre Cat
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Illegal for installation in NY on vehicles equipped with California emission systems; 14 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : RC96030006Series : Exact Fit SeriesTube Material : Aluminized Steel
Rear Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV19498
Guaranteed to Fit
$312.99
Vehicle Fitment
  • 2014 Chevrolet Cruze LTZ 4 Cyl 1.4L
  • 2014 Chevrolet Cruze Eco 4 Cyl 1.4L
  • 2014 Chevrolet Cruze LT 4 Cyl 1.4L
Product Details
Location : RearEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : With air tube port provision; 50.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Exact Fit SeriesTube Material : Aluminized Steel
Front Catalytic Converter Kit, CARB and Federal EPA Standards, 50-state Legal, 4 Cyl., 1.4L Engine, Direct Fit, includes Oxygen Sensor
Part Number: KIT-083023-175
Guaranteed to Fit
$1,149.99
Vehicle Fitment
  • 2014 Chevrolet Cruze LTZ 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011
  • 2014 Chevrolet Cruze LT 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011
  • 2014 Chevrolet Cruze Eco 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalComponents : (1) Catalytic Converter and (1) Oxygen SensorType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : KitEO Number : D-193-133Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 25024612Tube Material : Stainless Steel
Front Catalytic Converter Kit, CARB and Federal EPA Standards, 50-state Legal, 4 Cyl., 1.4L Engine, Direct Fit, includes Oxygen Sensor
Part Number: KIT-083023-174
Guaranteed to Fit
$1,126.99
Vehicle Fitment
  • 2014 Chevrolet Cruze LTZ 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011
  • 2014 Chevrolet Cruze LT 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011
  • 2014 Chevrolet Cruze Eco 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalComponents : (1) Catalytic Converter and (1) Oxygen SensorType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : KitEO Number : D-193-133Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 25024847Tube Material : Stainless Steel
Front Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV19522
Guaranteed to Fit
$407.49
Vehicle Fitment
  • 2014 Chevrolet Cruze LS 4 Cyl 1.8L Manifold Converter
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 17 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : RC96030007Series : Exact Fit SeriesTube Material : Aluminized Steel
Front Exact Fit Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV49518
Guaranteed to Fit
$438.49
Vehicle Fitment
  • 2014 Chevrolet Cruze LTZ 4 Cyl 1.4L Turbocharged, Dealer Alternative; Pre Cat
  • 2014 Chevrolet Cruze LT 4 Cyl 1.4L Turbocharged, Dealer Alternative; Pre Cat
  • 2014 Chevrolet Cruze Eco 4 Cyl 1.4L Turbocharged, Dealer Alternative; Pre Cat
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 8 in. W x 5 in. H; 14 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Exact Fit SeriesTube Material : Aluminized Steel
California Series Direct Fit Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal
Part Number: M665531145
Guaranteed to Fit
$1,310.00
Vehicle Fitment
  • 2014 Chevrolet Cruze LS 4 Cyl 1.8L Engine Vin: H, EO# D-193-137; Eng Fam No: Egmxv01.8011
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : Ceramic Substrate Material; 13.75 in. overall lengthType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-137Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : California SeriesTube Material : Stainless Steel
California Series Direct Fit Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal
Part Number: M66557406
Guaranteed to Fit
$353.00
Vehicle Fitment
  • 2014 Chevrolet Cruze LTZ 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011; Cutting And Welding Required
  • 2014 Chevrolet Cruze LT 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011; Cutting And Welding Required
  • 2014 Chevrolet Cruze Eco 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011; Cutting And Welding Required
Product Details
Location : RearEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 13 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-133Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : California SeriesTube Material : Stainless Steel
No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Part Number: M6651205
Guaranteed to Fit
$194.00
Vehicle Fitment
  • 2014 Chevrolet Cruze LTZ 4 Cyl 1.4L Cutting And Welding Required
  • 2014 Chevrolet Cruze LT 4 Cyl 1.4L Cutting And Welding Required
  • 2014 Chevrolet Cruze Eco 4 Cyl 1.4L Cutting And Welding Required
Product Details
Location : RearEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 2.25 in. Inlet/Outlet; 13 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Magnaflow Catalytic Converter SaleSeries : OEM Grade SeriesTube Material : Stainless Steel
California Series Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal
Part Number: M665571091
Guaranteed to Fit
$883.00
Vehicle Fitment
  • 2014 Chevrolet Cruze LS 4 Cyl 1.8L Engine Vin: H, EO# D-193-137; Eng Fam No: Egmxv01.8011
Product Details
Emissions : CARB and Federal EPA Standards, 50-state LegalNotes : (1) Converter Quantity; 2 in. Main Piping Diameter; Bolt-On Inlet Attachment; Bolt-On Outlet Attachment; Stainless Steel Material; Ceramic Substrate Material; Includes Gasket(s) and Hanger(s); 52.25 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-137Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : California SeriesTube Material : Stainless Steel
Front California Series Direct Fit Catalytic Converter, CARB and Federal EPA Standards, 50-state Legal
Part Number: M66551092
Guaranteed to Fit
$1,127.00
Vehicle Fitment
  • 2014 Chevrolet Cruze LTZ 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011
  • 2014 Chevrolet Cruze LT 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011
  • 2014 Chevrolet Cruze Eco 4 Cyl 1.4L EO# D-193-133; Eng Fam No: Egmxv01.8011
Product Details
Location : FrontEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : (1) Converter Quantity; 2 in. Main Piping Diameter; 4 in. Body Length x 5 in. Body Width x 5 in. Body Height; 2.75 in. ID x 2 in. OD; Round Body Shape; Spun Body Type; Clamp-On Inlet Attachment; Bolt-On Outlet Attachment; Stainless Steel Material; Pre Converter; 13.88 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-133Gasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warrantyReturns Policy : 30-Day Return PolicyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : California SeriesTube Material : Stainless Steel
OEM Grade Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: M6652091
Guaranteed to Fit
$386.00
Vehicle Fitment
  • 2014 Chevrolet Cruze LS 4 Cyl 1.8L Engine Vin: G
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 52.25 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 5-year or 50,000-mile Magnaflow limited warranty on Construction; 25,000-mile Magnaflow limited warranty on EmissionsProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OEM Grade SeriesTube Material : Stainless Steel
Page 1 of 5 | Showing 1 - 15 of 67 results

Popular Products

Product Questions & Answers

Q:Good evening   Does this make alot or noise ? And will it take the check engine light and pass New jersey inspection Show Less
Andy R.
A:BEST ANSWERHi Andy, Upon checking, this is a guaranteed fit from 2011 to 2015 Chevrolet Cruze L 4 Cyl 1.8L. this is a catalytic converter so there is no noise, the noise output is on the kind of muffler being used. This will pass your NJ emissions inspection. Show less
Jeonino E.
 
1 Question, 1 AnswerView all Q&As >

Helpful Automotive Resources

P0430 Code: Catalyst System Efficiency Below Threshold  (Bank 2)
P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)In most cases, a vehicle with an inefficient catalytic converter will continue to run just fine. But if the converter is obstructed internally, it can cause poor engine performance and may even damage the engine in the long run.
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3Bank 1 is the side of the engine where the #1 cylinder is located. P0042 code is set when your car’s PCM determines a potential problem with the heater element circuit of the oxygen sensor.
Can You Drive Without a Catalytic Converter?
Can You Drive Without a Catalytic Converter?Technically, yes. Older cars ran just fine before catalytic converters became commonplace in the 1970s. So, if your question is whether your car will run without one, then it most certainly will. But the other question you should be asking is—should you risk it?  Removing or disabling the catalytic converter could
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)The PCM may disable the misfiring cylinder or cylinders in order to prevent further damage to the engine. Code P0316 is often listed in addition to one or more of the P0300 series codes that are associated with the misfiring cylinder/s.
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)The Bank 1 portion of the code refers to the side of the engine with the number one cylinder. Sensor 1 refers to the upstream O2 sensor.
How to Tell If the Catalytic Converter is Clogged
How to Tell If the Catalytic Converter is CloggedA clogged catalytic converter will present symptoms, while a chemically failed cat con that’s not clogged typically just illuminates the check engine light or malfunction indicator lamp (MIL). Also, if the cat con that just fails chemically but doesn’t clog is not the light-off cat con (the cat con closest