BUICK RIVIERA Exhaust

Catalytic Converter, Stainless Steel, Universal, 2 in. Inlet/Outlet, 16.5 in. Length, Each

Part Number: CTO-2539

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Buick, Chevy, GMC, Oldsmobile, Pontiac, 20.5 in. Length, L4, V6, V8

Part Number: MPE-23419

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Muffler, SoundFX Series, Steel, Aluminized, 2.50 in. Inlet/2.25 in. Outlet, Each

Part Number: WLK-17855

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Catalytic Converter, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, 21.375 in., 3.8, 4.3, 4.9, 5.0, 5.7L

Part Number: MPE-93418

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 4, 2026 if ordered today

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Intermediate Pipe, Exhaust, Front Pipe, Steel, Aluminized, Buick, Pontiac, Each

Part Number: WLK-52270

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Universal, 2.5 in. Inlet/Outlet, Each

Part Number: WLK-15042

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Estimated Ship Date: Mar 9, 2026 if ordered today

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Exhaust Manifolds, Cast Iron, Natural, Front, Left, Buick, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: ATP-101273

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Resonator, Aluminized, Steel, Each

Part Number: WLK-21992

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Estimated Ship Date: Mar 9, 2026 if ordered today

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Muffler, SoundFX, 2 1/4in. Inlet/3 in. Outlet, Steel, Aluminized, Pontiac, 6000, Each

Part Number: WLK-18235

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Estimated Ship Date: Mar 9, 2026 if ordered today

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Exhaust Manifold Bolt, Steel, Natural, Buick, Chrysler, Dodge, Oldsmobile, Plymouth, Pontiac, Each

Part Number: APH-4975

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Catalytic Converter, California Grade CARB Compliant Universal Catalytic Converter, Stainless Steel, Audi, Volvo, Each

Part Number: MPE-3322306

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Muffler, OE Replacement, Steel, Aluminized, Buick, Oldsmobile, Each

Part Number: APH-2140

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

CalCat CARB Catalytic Converter

Part Number: WLK-81322

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Estimated Ship Date: Mar 9, 2026 if ordered today

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Catalytic Converter, Ceramic Honeycomb Substrate, 16.250 in. Overall Length, Buick, Chevy, GMC, Olds, Pontiac

Part Number: WLK-82637

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Estimated Ship Date: Mar 9, 2026 if ordered today

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Resonator, Round, Steel, Aluminized, 2.25 in. Center Inlet, 2.50 in. Center Outlet, Buick, Chevy, Pontiac

Part Number: WLK-21687

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Estimated Ship Date: Mar 9, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Universal, 2.5 in. Inlet/Outlet, 18 in. Length, Each

Part Number: WLK-15142

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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DIRECT-FIT CATALYTIC CONVERTER

Part Number: WLK-15817

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Estimated Ship Date: Mar 9, 2026 if ordered today

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Muffler, OE Replacement, Steel, Aluminized, Buick, Cadillac, Oldsmobile, V6, V8, Each

Part Number: APH-3588

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Catalytic Converters, Direct-Fit, Stock Flange Inlet, 2.50 in. Slip Fit Outlet, 38.38 in. Overall Length, Buick, Oldsmobile, Pontiac, Each

Part Number: APH-642706

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Catalytic Converters, Universal, 2.00 in. Slip Fit Inlet/Outlet, Stainless Steel Case, Ceramic Honeycomb Substrate, 16.50 in. Overall Length, Each

Part Number: APH-608234

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Buick, Pontiac, 38.375 in Length, 3.8L, Each

Part Number: CTO-4975

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, 22.75 in. Length, 4.1, 5.0L

Part Number: MPE-23447

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 4, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Buick, Oldsmobile, Pontiac, Car, 23.375 in. Length, Each

Part Number: CTO-4890

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 27, 2026 if ordered today

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Catalytic Converters, Direct-Fit, Stock Flange Inlet, 2.50 in. Slip Fit Outlet, 23.00 in. Overall Length, Buick, Oldsmobile, Pontiac, Each

Part Number: APH-645357

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Catalytic Converter, California Grade CARB Compliant Direct-Fit Catalytic Converter, Stainless Steel, Chevy, GMC, Each

Part Number: MPE-3322418

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Estimated Ship Date: Mar 4, 2026 if ordered today

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