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Shopping for 2011-Chevrolet-Impala
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Catalytic Converter

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Front Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Front Side, Fit Federal Emissions, A-Premium APCCT035
4.4251 Reviews
$172.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
22794842, 16776, 19612
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Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Rear Side, Fit Federal Emissions, A-Premium APCCT119
$204.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Installation PositionRear Side
ColorNatural
Part interchange
54693, 15780299, 25820197, 25882589
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Front Natural Catalytic Converter
A-Premium®
1-PC Catalytic Converter, Front Side, Fit Federal Emissions, A-Premium APCCT697
$269.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Installation PositionFront Side
ColorNatural
Part interchange
54962, 644017, 19472, 50518
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AP Emissions 608265 Catalytic Converter
AP Emissions
AP Emissions 608265 Catalytic Converter
$152.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
608265
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AP Emissions 608216 Catalytic Converter
AP Emissions
AP Emissions 608216 Catalytic Converter
$159.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
608216
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AP Emissions 608706 Catalytic Converter
AP Emissions
AP Emissions 608706 Catalytic Converter
$204.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
608706
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AP Emissions 772105 Catalytic Converter
AP Emissions
AP Emissions 772105 Catalytic Converter
$423.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
772105
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AP Emissions 770105 Catalytic Converter
AP Emissions
AP Emissions 770105 Catalytic Converter
$626.99
Quantity Less than 2
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
770105
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AP Emissions 642235 Catalytic Converter
AP Emissions
AP Emissions 642235 Catalytic Converter
$338.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
642235
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AP Emissions 608416 Catalytic Converter
AP Emissions
AP Emissions 608416 Catalytic Converter
$148.99
Quantity Less than 5
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
608416
Show less
AP Emissions 608736 Catalytic Converter
AP Emissions
AP Emissions 608736 Catalytic Converter
$261.99
Only 1 item left in stock
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
608736
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AP Emissions 644102 Catalytic Converter, Rear Side
AP Emissions
AP Emissions 644102 Catalytic Converter, Rear Side
$309.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
644102
Show less
AP Emissions 608266 Catalytic Converter
AP Emissions
AP Emissions 608266 Catalytic Converter
$141.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
608266
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Eastern Catalytic 50633 Catalytic Converter, Front Side
Eastern Catalytic
Eastern Catalytic 50633 Catalytic Converter, Front Side
$380.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Installation PositionFront
Part interchange
50633
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Eastern Catalytic 99176 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 99176 Catalytic Converter
$305.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
99176
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Eastern Catalytic 50518 Catalytic Converter, Center
Eastern Catalytic
Eastern Catalytic 50518 Catalytic Converter, Center
$860.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Installation PositionCenter
Part interchange
50518
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Eastern Catalytic 50419 Catalytic Converter
Eastern Catalytic
Eastern Catalytic 50419 Catalytic Converter
$354.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
50419
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MagnaFlow 551005 Catalytic Converter
MagnaFlow
MagnaFlow 551005 Catalytic Converter
$446.99
Quantity Less than 3
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
551005
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MagnaFlow 5411305 Catalytic Converter
MagnaFlow
MagnaFlow 5411305 Catalytic Converter
$665.99
Quantity Less than 4
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Part interchange
5411305
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Catalytic Converter - Walker 15034
Walker
Walker 15034 Catalytic Converter, Exhaust
$167.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2011 Chevrolet Impala
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15034, SC207, 602507, 6007, 602007, 70430, SC217, 6507
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Page 1 of 2

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!