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Kia Optima Catalytic Converters
This page brings together catalytic converters for the Kia Optima covering model years 2001–2020, with options ranging from universal units to direct-fit and manifold-style replacements. Select your year above and we'll show only the catalytic converters that fit your Kia Optima. Fitment is checked against our vehicle data for every part listed.
31 - 60 of 61 results
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Magnaflow 99204HM Universal Catalytic Converter 2.00 Inch Inlet/Outlet
Part: 99204HM
Vehicle Specific
$178.00
1 left at this price
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MagnaFlow 51555 OEM Grade Federal EPA Catalytic Converter Universal 2.25in
Part: 51555
Vehicle Specific
$345.00
In Stock (5)
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Magnaflow California Grade CARB Compliant Universal Catalytic Converter Inlet/Outlet
Vehicle Specific
from $373
4 left at this price
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Magnaflow 451256 Universal Catalytic Converter 2.50 Inch Inlet/Outlet
Part: 451256
Vehicle Specific
$373.00
In Stock (5)
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Magnaflow 451206 Universal Catalytic Converter Inlet/Outlet - 2.50in
Part: 451206
Vehicle Specific
$423.00
1 left at this price
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Catco 2505 Universal Catalytic Converter OBDII Compliant 2.25" Inlet/Outlet
Part: 2505
Universal Fit
$163.63
2 left at this price
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Catco 4224 Federal/EPA Pre-Cat 6500 Series Direct-Fit Catalytic Converter
Part: 4224
Vehicle Specific
$188.56
1 left at this price
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Magnaflow 4481354 Universal Catalytic Converter 2.00 Inch Inlet/Outlet
Part: 4481354
Vehicle Specific
$867.00
3 left at this price
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Magnaflow 5571205 Universal Catalytic Converter - 2.25 Inch Inlet/Outlet
Part: 5571205
Vehicle Specific
$409.00
2 left at this price
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Catco 2735R Universal OBDII Catalytic Converter Federal EPA Select+Plus
Part: 2735R
Vehicle Specific
$520.67
In Stock (10+)
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Representative Photo, actual item may vary
Dorman 678-515 Pre-Converter Catalytic Converter CARB Compliant Direct Fit
Part: 678-515
Vehicle Specific
$594.58
In Stock (5)
What's here for your Kia Optima
- Direct-fit catalytic converters designed as OE replacements
- Universal catalytic converters for flexible installation
- Manifold catalytic converters combining the exhaust manifold and converter in one unit
The widest selection here comes from Magnaflow, Catco, AP Exhaust, and Walker Exhaust, giving Kia Optima owners a broad range of fitment styles and construction types to choose from. Other categories Kia Optima owners shop for: Kia Optima Brake Rotors and Drums, Kia Optima Shocks and Struts and Kia Optima Springs and Suspension Parts, or browse all Kia Optima parts and accessories.