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Kia Optima Catalytic Converter

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MagnaFlow 441304 Catalytic ConverterMagnaFlow 441304 Catalytic Converter
MagnaFlow
MagnaFlow 441304 Catalytic Converter
$482.99
Quantity Less than 3
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Part interchange
441304
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MagnaFlow 452021 Catalytic Converter with Integrated Exhaust Manifold, Front Side
MagnaFlow
MagnaFlow 452021 Catalytic Converter with Integrated Exhaust Manifold, Front Side
$737.99
Quantity Less than 2
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionFront
Part interchange
452021, 28510-37162, 28510-37381
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MagnaFlow 444104 Catalytic Converter
MagnaFlow
MagnaFlow 444104 Catalytic Converter
$314.99
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3-year warranty
90 days free return
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Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Part interchange
444104
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Catalytic Converter - Walker 93252
Walker
Walker 93252 Catalytic Converter, Exhaust
$185.99
Quantity Less than 3
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3-year warranty
90 days free return
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Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
93252, 92465, 70217, 99205HM, 92365, 2575r, 79224, 608745, 
...View more
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Catalytic Converter - Walker 83205
Walker
Walker 83205 Catalytic Converter, Exhaust
$224.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
83205
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Catalytic Converter - Walker 16380
Walker
Walker 16380 Catalytic Converter, Exhaust
$355.99
Only 1 item left in stock
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3-year warranty
90 days free return
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Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
16380, 754348, 40790, 099-1317, 642236, 2895025560, 642190, 642067, 
...View more
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Catalytic Converter - Walker 84205
Walker
Walker 84205 Catalytic Converter, Exhaust
$201.99
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3-year warranty
90 days free return
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Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
84205
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Catalytic Converter - Walker 93236
Walker
Walker 93236 Catalytic Converter, Exhaust
$170.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
93236, 89514, 70382, 70316, 91004M, 93804, 602206, 6904, 
...View more
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Catalytic Converter - Walker 93251
Walker
Walker 93251 Catalytic Converter, Exhaust
$183.99
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
93251, 51754, 99656HM, 70216, 70247, 99214, 92154, 51204, 
...View more
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Catalytic Converter - Walker 93302
Walker
Walker 93302 Catalytic Converter, Exhaust
$219.99
Quantity Less than 5
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3-year warranty
90 days free return
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Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
93302, 79917, 51505, 51555, 8005, 608224, 95285, 71317, 
...View more
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Catalytic Converter - Rear Side - Walker 55312
Walker
Walker 55312 Catalytic Converter, Rear Side
$470.99
Only 1 item left in stock
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
55312, 49484, 754358, 4358, 49862, 642986, 40404, 2861038156, 
...View more
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Catalytic Converter with Integrated Exhaust Manifold - Front Side - Walker 16667
Walker
Walker 16667 Catalytic Converter with Integrated Exhaust Manifold, Front Side
$731.99
Quantity Less than 2
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionFront
MaterialStainless Steel
Part interchange
16667, 1143, 754656, 641439, 285103E830, 674-108, 096-1331, 50909, 
...View more
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Catalytic Converter - Rear Side - Walker 16648
Walker
Walker 16648 Catalytic Converter, Rear Side
$424.99
Quantity Less than 4
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3-year warranty
90 days free return
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Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
16648, 289602G710, 099-1345, 21-161, 289602G540, 49442
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Catalytic Converter - Walker 16513
Walker
Walker 16513 Catalytic Converter, Exhaust
$217.99
Quantity Less than 5
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3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
16513, 289503E140, 40790, 642130, 754643, 71316, 289503E180, 096-1321, 
...View more
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Catalytic Converter - Front Side - Walker 16395
Walker
Walker 16395 Catalytic Converter, Front Side
$570.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionFront
Part interchange
16395, 751018, 2853038750, 2853038760, 112018, 40516, 641154, 1018, 
...View more
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Catalytic Converter - Walker 15036
Walker
Walker 15036 Catalytic Converter, Exhaust
$95.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15036, 70382, 70316, 93804, 602207, 6904, 602204, 91004, 
...View more
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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: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15034, SC207, 602507, 6007, 602007, 70430, SC217, 6507
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Catalytic Converter - Walker 15104
Walker
Walker 15104 Catalytic Converter, Exhaust
$269.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionExhaust
Part interchange
15104, 641211, 92624, 82624
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Catalytic Converter - Rear Side - Walker 84250
Walker
Walker 84250 Catalytic Converter, Rear Side
$386.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
84250
Show less
Catalytic Converter - Rear Side - Walker 83295
Walker
Walker 83295 Catalytic Converter, Rear Side
$426.99
Edit ZIP code
3-year warranty
90 days free return
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Kia Optima
Item LocatedUnited States
Quantity1
Installation PositionRear
Part interchange
83295, 754348
Show less
Page 4 of 5

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!