Search parts for your 2004 Cadillac CTS

14 products matching “Catalytic Converter” listed as compatible with this vehicle.

  • MagnaFlow HM Grade Federal / EPA Compliant Universal Catalytic Converter, 99204HM

    MagnaFlowMPN 99204HMNew

    In stock

    $194.99

    Listed as compatible with this vehicle by the retailer feed.

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  • MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 51137

    MagnaFlowMPN 51137New

    In stock

    $561.99

    Listed as compatible with this vehicle by the retailer feed.

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  • MagnaFlow HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 24931

    MagnaFlowMPN 24931New

    In stock

    $587.99

    Listed as compatible with this vehicle by the retailer feed.

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  • MagnaFlow HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 24930

    MagnaFlowMPN 24930New

    In stock

    $595.99

    Listed as compatible with this vehicle by the retailer feed.

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  • MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter, 49884

    MagnaFlowMPN 49884New

    In stock

    $624.99

    Listed as compatible with this vehicle by the retailer feed.

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  • Walker Ultra EPA Direct Fit Catalytic Converter 2" Outlet (OD), 16546

    WalkerMPN 16546New

    In stock

    $649.99

    Listed as compatible with this vehicle by the retailer feed.

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  • Walker Ultra EPA Direct Fit Catalytic Converter 2" Outlet (OD), 16544

    WalkerMPN 16544New

    In stock

    $691.99

    Listed as compatible with this vehicle by the retailer feed.

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  • Walker CalCat CARB Universal Catalytic Converter 2" Inlet (ID) 2" Outlet (ID), 82603

    WalkerMPN 82603New

    In stock

    $788.99

    Listed as compatible with this vehicle by the retailer feed.

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  • Walker CalCat CARB Direct Fit Catalytic Converter 1.98" Outlet (OD) Overall Length 18.570 IN, 84682

    WalkerMPN 84682New

    In stock

    $838.99

    Listed as compatible with this vehicle by the retailer feed.

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  • Walker CalCat CARB Direct Fit Catalytic Converter 1.98" Outlet (OD) Overall Length 18.650 IN, 84683

    WalkerMPN 84683New

    In stock

    $926.99

    Listed as compatible with this vehicle by the retailer feed.

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  • MagnaFlow California Grade CARB Compliant Universal Catalytic Converter, 456205

    MagnaFlowMPN 456205New

    In stock

    $931.99

    Listed as compatible with this vehicle by the retailer feed.

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  • MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter, 4561049

    MagnaFlowMPN 4561049New

    In stock

    $1,751.00

    Listed as compatible with this vehicle by the retailer feed.

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  • Walker CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID), 82815

    WalkerMPN 82815New

    Out of stock

    $624.99

    Listed as compatible with this vehicle by the retailer feed.

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  • Walker CalCat CARB Direct Fit Catalytic Converter 1.995" Outlet (OD), 82883

    WalkerMPN 82883New

    Out of stock

    $1,100.00

    Listed as compatible with this vehicle by the retailer feed.

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This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.