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Shopping for 2011-Cadillac-CTS
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Catalytic Converter

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2008-2011 Cadillac CTS 2pc Catalytic Converter Driver & Passenger Fit Federal Emissions A-Premium APCCT030
A-Premium®Part # APCCT030
2008-2011 Cadillac CTS 2pc Catalytic Converter Driver & Passenger Fit Federal Emissions A-Premium APCCT030
4.618 Reviews
$486.99
CA$512.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Cadillac CTS: 2008 2009 2010 2011
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Cadillac CTS
Item LocatedCanada
Quantity2
Installation PositionDriver & Passenger
ColorNatural
Part interchange
16685, 25971634, 16684, 25939989
item #10055PZ4
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
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2008-2011 Cadillac CTS 1pc Catalytic Converter Right Passenger Side Fit Federal Emissions A-Premium APCCT029
A-Premium®Part # APCCT029
2008-2011 Cadillac CTS 1pc Catalytic Converter Right Passenger Side Fit Federal Emissions A-Premium APCCT029
4.618 Reviews
$265.99
CA$279.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Cadillac CTS: 2008 2009 2010 2011
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Cadillac CTS
Item LocatedCanada
Quantity1
Installation PositionRight Passenger Side
ColorNatural
Part interchange
16684, 25939989
item #100555X8
Note
EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
Show less
2008-2011 Cadillac CTS 1pc Catalytic Converter Left Driver Side Fit Federal Emissions A-Premium APCCT031
A-Premium®Part # APCCT031
2008-2011 Cadillac CTS 1pc Catalytic Converter Left Driver Side Fit Federal Emissions A-Premium APCCT031
4.618 Reviews
$260.99
CA$274.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Fits Cadillac CTS: 2008 2009 2010 2011
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Cadillac CTS
Item LocatedCanada
Quantity1
Installation PositionLeft Driver Side
ColorNatural
Part interchange
16685, 25971634
item #100556Z0
Note
【Note-1】 EPA Compliant -- Suitable for use on OBDII vehicles from 1996 and newer. This product is not legal for sale or use in CA/NY/CO/ME due to state emissions regulations. We do not ship it to these states. This product is compatible with Federal Emissions standards. For California Emissions Standards, please check the state's aftermarket converter regulations.
【Note-2】 This item fits for the vehicle with V6 3.6L engine only.
Show less

A catalytic converter, often referred to as a "cat," is an essential component of your engine's exhaust system. This device uses catalysts to transform harmful chemicals in the exhaust gases.

What are the signs of a bad catalytic converter?

  • Check engine light
    The dashboard warning light may illuminate, indicating potential issues.
  • Decreased engine performance
    Noticeable loss of power, acceleration, or overall engine performance.
  • Poor fuel economy
    A significant drop in fuel efficiency can occur as the converter fails.
  • Excessive exhaust emissions
    Increased emissions, including a strong sulfur or rotten egg smell.
  • Rattling noises
    Unusual rattling sounds from the exhaust system, indicating internal damage.
  • Overheating
    The engine may run hotter than normal due to restricted exhaust flow.
  • Failed emissions test
    Inability to pass emissions testing due to high pollution levels.

Shop for aftermarket catalytic converters on A-Premium.com

Premium.com offers a wide range of aftermarket catalytic converters for your vehicle. Refine your search by selecting from various dimensions, inlet types, and tube materials. A-Premium team is dedicated to helping you find a compatible catalytic converter for your car. Every item in our catalog is carefully selected by our team of experts, ensuring they undergo rigorous quality checks to endure the demanding conditions of your exhaust system. Shop now to find the best deal on your new catalytic converter!