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Walker CalCat Universal Catalytic Converters

4.8 out of 5 stars 41 Customer Reviews

Specifically created for Californians, Walker CalCat universal fit catalytic converters comply with regulations for OBD-II and pre-ODB-II vehicles. These converters feature a universal, weld-in design at a great cost savings over expensive OEM converters and feature a stainless steel body, heat-shielded pipe, and structural brace for enhanced strength and durability. Get the best balance of performance and price from Walker CalCat universal catalytic converters. Order the model designed for your application needs.

Results 1 - 25 of 177

Catalytic Converter, CalCat Universal, One Inlet, 2.25 in., One Outlet, 2.25 in., Stainless Steel, Ceramic Honeycomb, Each

Part Number: WLK-83402

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Catalytic Converter, Cal-Cat Universal, 2.500 in. Slip Fit Inlet, 2.500 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-83403

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Catalytic Converter, Cal-Cat Universal, 2.000 in. Slip Fit Inlet, 2.000 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-83401

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 3.000 in. Slip Fit Inlet, 3.000 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-83509

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Catalytic Converter, CalCat, California Legal, 2.00 in. Inlet/Outlet, 12.00 in. Overall Length, 4.00 in. Thick, 4.00 in. Width, Universal, Each

Part Number: WLK-84403

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.000 in. Slip Fit Inlet, 2.000 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-81651

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.250 in. Slip Fit Inlet, 2.250 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-82629

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, CalCal Universal, One Inlet, 3 in., One Outlet, 3 in., Stainless Steel, Ceramic Honeycomb, Each

Part Number: WLK-83404

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Catalytic Converters, Universal, Stainless Steel Case, 2.500 in. Slip Fit Inlet/Outlet, 12.000 in. Overall Length, Each

Part Number: WLK-83601

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.250 in. Slip Fit Inlet, 2.250 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-82504

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converters, Universal, Stainless Steel Case, 2.250 in. Slip Fit Inlet/Outlet, 12.00 in. Overall Length, Audi, BMW, Chevy, Ford, Toyota, Each

Part Number: WLK-84205

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Catalytic Converter, CalCat, Stainless Case, 2.500 in. Inlet/2.500 in Outlet, Chevy, Dodge, Ford, Toyota, Each

Part Number: WLK-80906

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, CalCat Universal, Stainless Steel Case, Chrysler, Mazda, Mercedes-Benz, Pontiac, Toyota, Each

Part Number: WLK-82600

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Catalytic Converters, Universal, Stainless Steel Case, 2.250 in. Slip Fit Inlet/Outlet, 18.000 in. Overall Length, Each

Part Number: WLK-80905

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Catalytic Converters, Universal, Stainless Steel Case, 2.250 in. Slip Fit Inlet/Outlet, 15.500 in. Overall Length, Each

Part Number: WLK-82614

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.500 in. Slip Fit Inlet, 2.500 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-81803

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.000 in. Slip Fit Inlet, 2.000 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-83410

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.500 in. Slip Fit Inlet, 2.500 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-81918

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.500 in. Slip Fit Inlet, 2.500 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-80902

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.500 in. Slip Fit Inlet, 2.500 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-83206

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.250 in. Slip Fit Inlet, 2.250 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-80901

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.250 in. Slip Fit Inlet, 2.250 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-82701

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.000 in. Slip Fit Inlet, 2.000 in. Slip Fit Outlet, Ceramic Honeycomb, Heat Shield, Universal, Each

Part Number: WLK-82901

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Catalytic Converter, Cal-Cat Universal, 2.500 in. Slip Fit Inlet, 2.500 in. Slip Fit Outlet, Ceramic Honeycomb, Universal, Each

Part Number: WLK-82515

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

Catalytic Converter, CalCat, Universal, Stainless Steel, Ford, Lincoln, Mercury, Each

Part Number: WLK-82522

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

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