Availability
BUICK Exhaust
Catalytic Converter, Stainless Steel, 2.50 in. Inlet, 2.50 in. Outlet, 15.0 in. Length, Universal, Each
Part Number: MPE-418006
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter, Stainless Steel, Universal, 2.25 in. Inlet/Outlet, 16 in. Length, Each
Part Number: MPE-94015
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Check Valve, AMC, BMW, Buick, Cadillac, Chevy, Chrysler, Dodge, Jeep, Olds, Pontiac, Saab, Volkswagen, Each
Part Number: SMP-AV7T
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Manifolds, Cast Iron, Natural, Right, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each
Part Number: ATP-101156
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Catalytic Converter, Diesel, Universal, 2.165 in. Inlet/Outlet, Each
Part Number: MPE-60105
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Clamps, Extra Heavy-Duty U-Clamps, U-bolt Clamp Style, 0.500 in. Clamp Width, 2.625 in. Pipe Diameter, Steel, Natural, Ram, 3.6L, Each
Part Number: APH-H258
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Tru-Fit Series, Steel, Aluminized, 2.50 in. Inlet/2.25 in. Outlet, Each
Part Number: WLK-18112
Estimated Ship Date: Today
Estimated Ship Date: Today
Catalytic Converter with Integrated Exhaust Manifold, Manifold Converter - Not Carb Compliant - Not For Sale -
Part Number: RNB-674-048
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converters, Universal, Stainless Case, Ceramic Honeycomb Substrate, 14.00 in. Overall Length, Buick, Chevy, Chrysler, Ford, GMC, Jeep, Each
Part Number: APH-602006
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Catalytic Converter 08-15 6 Cyl 3.6L Engine, Front Left
Part Number: CTO-5240
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Catalytic Converter, Walker CalCat Direct Fit Converter
Part Number: WLK-84589
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Muffler, OE Replacement, Steel, Aluminized, Buick, 3.8, 3.9L, Each
Part Number: APH-2513
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Walker Quiet-Flow SS 409 Stainless Steel 2.25 Inch Muffler 21557
Not Yet Reviewed
Estimated Ship Date: Today
Muffler, Tru-Fit, Steel, Aluminized, 2.25 in. Inlet, 2.25 in. Outlet, 26.0 in. Length, Each
Part Number: WLK-18113
Estimated Ship Date: Today
Estimated Ship Date: 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
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Headers, Super Competition, Long Tube, Steel, Painted, Buick, 400, 455, Pair
Part Number: HOK-1203HKR
Not Yet Reviewed
Estimated Ship Date: Feb 13, 2026 if ordered today
Estimated Ship Date: Feb 13, 2026 if ordered today
Exhaust Flange Hardware, Studs, Nuts, Washers, Black, Steel, Kit
Part Number: FEL-ES75102
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Systems, Crossmember Back w/X-Pipe, 78-88 GM G-Body SS Split Rear Dual Exit 2.5 in Intermediate Pipe
Part Number: PYE-SGG912RE
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Muffler, MSL, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, Each
Part Number: APH-700087
Not Yet Reviewed
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Estimated Ship Date: Feb 18, 2026 if ordered today
Exhaust Systems, Crossmember Back w/X-Pipe, 78-88 GM G-Body Split Rear Dual Exit 2.5 in Intermediate
Part Number: PYE-SGG910SE
Not Yet Reviewed
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Exhaust Systems, Crossmember Back w/X-Pipe, 78-88 GM G-Body Split Rear Dual Exit 2.5 in Intermediate
Part Number: PYE-SGG910RE
Estimated Ship Date: Mar 9, 2026 if ordered today
Estimated Ship Date: Mar 9, 2026 if ordered today
Exhaust Manifolds, Cast Iron, Natural, Left, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each
Part Number: ATP-101246
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Carburetor Pre-Heater Hose, Flex Tube, 2.00 in. Diameter, 18 in. Length, Each
Part Number: RNB-96024
Estimated Ship Date: Today
Estimated Ship Date: Today
Muffler, Premium Pro-Fit, 2 1/4 in. Inlet/2 in. Outlet, Steel, Aluminized, Each
Part Number: WLK-17800
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Header Studs, 12-Point Nuts, Steel, Black Oxide, Buick, 350-455, Set of 14
Part Number: ARP-120-1401
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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