CADILLAC STS Catalytic Converters

Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Cadillac, Each

Part Number: WLK-52503

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Catalytic Converter, Universal, One Inlet, Ceramic Honeycomb, Stainless Steel, 2.25 in. Slip Fit Inlet/Outlet, 9.125 in. Length, Each

Part Number: MPE-5461205

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Estimated Ship Date: Today

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• Mfr. Rebate

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Buy Converter and get up to $75 back after sending in your old one! Please visit www.magnaflow.com/pages/retailer-recycling-program ...Read More

Buy a Magnaflow Converter and get UP TO $75 back after sending in your old OEM one! Visit www.magnaflow.com/pages/retailer-recycling-program to begin the rebate redemption process. Valid on purchases made between 1/1/25 and 12/31/25. Open to legal residents of the 50 United States and District of Columbia. Only OE (original equipment) converters are eligible for a refund. Rebate will be in the form of a Visa Prepaid card. Please allow 4-6 weeks to receive rebate. Show Less

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Catalytic Converter 08-11 6 Cyl. Cadillac CTS, 3.6L Engine, Left & 08-09 6 Cyl. Cadillac SRX, 3.6L Engine,

Part Number: CTO-5247

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Estimated Ship Date: Today

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Catalytic Converter, Stainless Steel, Cadillac, 3.6L, Driver Side, Each

Part Number: MPE-49170

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Estimated Ship Date: Today

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• Mfr. Rebate

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Buy Converter and get up to $75 back after sending in your old one! Please visit www.magnaflow.com/pages/retailer-recycling-program ...Read More

Buy a Magnaflow Converter and get UP TO $75 back after sending in your old OEM one! Visit www.magnaflow.com/pages/retailer-recycling-program to begin the rebate redemption process. Valid on purchases made between 1/1/25 and 12/31/25. Open to legal residents of the 50 United States and District of Columbia. Only OE (original equipment) converters are eligible for a refund. Rebate will be in the form of a Visa Prepaid card. Please allow 4-6 weeks to receive rebate. Show Less

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Integrated Exhaust Manifold - Cast - Includes Gasket

Part Number: RNB-674-931

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Cadillac, Each

Part Number: WLK-16685

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Estimated Ship Date: Jan 19, 2026 if ordered today

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CalCat CARB Catalytic Converter

Part Number: WLK-84615

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Catalytic Converter, Direct Fit, Stainless Steel, Cadillac, Each

Part Number: MPE-24403

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Estimated Ship Date: Jan 19, 2026 if ordered today

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• Free Shipping
• Special Order
• Mfr. Rebate

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Buy Converter and get up to $75 back after sending in your old one! Please visit www.magnaflow.com/pages/retailer-recycling-program ...Read More

Buy a Magnaflow Converter and get UP TO $75 back after sending in your old OEM one! Visit www.magnaflow.com/pages/retailer-recycling-program to begin the rebate redemption process. Valid on purchases made between 1/1/25 and 12/31/25. Open to legal residents of the 50 United States and District of Columbia. Only OE (original equipment) converters are eligible for a refund. Rebate will be in the form of a Visa Prepaid card. Please allow 4-6 weeks to receive rebate. Show Less

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Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Ceramic Honeycomb Substrate, 16.00 in. Overall Length, Left, Cadillac, 3.6L, Each

Part Number: APH-642132

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Catalytic Converters, Federal/EPA Direct-Fit Catalytic Converter, Stainless Steel, Cadillac, Each

Part Number: CTO-4619

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Estimated Ship Date: Jan 13, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Cadillac, 4.6L, Driver Side, Each

Part Number: MPE-51070

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Estimated Ship Date: Jan 19, 2026 if ordered today

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• Special Order
• Mfr. Rebate

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Buy Converter and get up to $75 back after sending in your old one! Please visit www.magnaflow.com/pages/retailer-recycling-program ...Read More

Buy a Magnaflow Converter and get UP TO $75 back after sending in your old OEM one! Visit www.magnaflow.com/pages/retailer-recycling-program to begin the rebate redemption process. Valid on purchases made between 1/1/25 and 12/31/25. Open to legal residents of the 50 United States and District of Columbia. Only OE (original equipment) converters are eligible for a refund. Rebate will be in the form of a Visa Prepaid card. Please allow 4-6 weeks to receive rebate. Show Less

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Catalytic Converter, Stainless Steel, Cadillac, 4.6L, Passenger Side, Each

Part Number: MPE-51071

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Estimated Ship Date: Jan 19, 2026 if ordered today

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• Mfr. Rebate

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Buy Converter and get up to $75 back after sending in your old one! Please visit www.magnaflow.com/pages/retailer-recycling-program ...Read More

Buy a Magnaflow Converter and get UP TO $75 back after sending in your old OEM one! Visit www.magnaflow.com/pages/retailer-recycling-program to begin the rebate redemption process. Valid on purchases made between 1/1/25 and 12/31/25. Open to legal residents of the 50 United States and District of Columbia. Only OE (original equipment) converters are eligible for a refund. Rebate will be in the form of a Visa Prepaid card. Please allow 4-6 weeks to receive rebate. Show Less

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Catalytic Converter, Universal, Ceramic Honeycomb, Stainless Steel, 2 in. Slip Fit Inlet/Outlet, 9.375 in. Length, Each

Part Number: MPE-5461204

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Estimated Ship Date: Jan 19, 2026 if ordered today

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• Free Shipping
• Special Order
• Mfr. Rebate

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Buy Converter and get up to $75 back after sending in your old one! Please visit www.magnaflow.com/pages/retailer-recycling-program ...Read More

Buy a Magnaflow Converter and get UP TO $75 back after sending in your old OEM one! Visit www.magnaflow.com/pages/retailer-recycling-program to begin the rebate redemption process. Valid on purchases made between 1/1/25 and 12/31/25. Open to legal residents of the 50 United States and District of Columbia. Only OE (original equipment) converters are eligible for a refund. Rebate will be in the form of a Visa Prepaid card. Please allow 4-6 weeks to receive rebate. Show Less

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Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Stainless Steel Case, 18.50 in. Overall Length, Left, Cadillac, Each

Part Number: APH-644041

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Stainless Steel Case, 19.00 in. Overall Length, Right, Cadillac, Each

Part Number: APH-644042

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Estimated Ship Date: Jan 12, 2026 if ordered today

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• Oversize $39.99
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Catalytic Converter 08-11 6 Cyl. Cadillac CTS, 3.6L Engine, Right & 08-09 6 Cyl. Cadillac SRX, 3.6L Engine

Part Number: CTO-5248

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Estimated Ship Date: Jan 7, 2026 if ordered today

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Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Cadillac, Each

Part Number: WLK-52502

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Catalytic Converters, Direct-Fit, Stock Flange Inlet/Outlet, Ceramic Honeycomb Substrate, 16.00 in. Overall Length, Right, Cadillac, 3.6L, Each

Part Number: APH-642131

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Catalytic Converters, Direct-Fit, Left, Converter with Integrated Exhaust Manifold, Cadillac, 4.6L, Each

Part Number: APH-641442

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Catalytic Converters, Direct-Fit, Right, Converter with Integrated Exhaust Manifold, Cadillac, 4.6L, Each

Part Number: APH-641443

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Estimated Ship Date: Jan 16, 2026 if ordered today

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EPA OBDII Direct Fit Converter

Part Number: CTO-1342

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Catalytic Converters, Federal/EPA Direct-Fit Catalytic Converter, Stainless Steel, Cadillac, Each

Part Number: CTO-4618

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Estimated Ship Date: Jan 12, 2026 if ordered today

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EPA OBDII Direct Fit Converter

Part Number: CTO-1343

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Catalytic Converter, Direct-Fit, Cadillac, Driver Side, Kit

Part Number: RNB-673-931

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Cadillac, 4.4L, Passenger Side, Each

Part Number: MPE-51131

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order
• Mfr. Rebate

Mail - In Rebate

Rebate amount based on part(s) total.

Rebate Expires: 12/31/2025

Buy Converter and get up to $75 back after sending in your old one! Please visit www.magnaflow.com/pages/retailer-recycling-program ...Read More

Buy a Magnaflow Converter and get UP TO $75 back after sending in your old OEM one! Visit www.magnaflow.com/pages/retailer-recycling-program to begin the rebate redemption process. Valid on purchases made between 1/1/25 and 12/31/25. Open to legal residents of the 50 United States and District of Columbia. Only OE (original equipment) converters are eligible for a refund. Rebate will be in the form of a Visa Prepaid card. Please allow 4-6 weeks to receive rebate. Show Less

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