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Performance and Replacement Car, Truck, and More Exhaust Parts
Your car or truck was originally equipped with a restrictive, small-diameter exhaust system that was designed for one purpose: to be as quiet as possible. Uncork your...
Your car or truck was originally equipped with a restrictive, small-diameter exhaust system that was designed for one purpose: to be as quiet as possible. Uncork your vehicle’s exhaust flow with a performance exhaust system and you’ll restore lost horsepower and torque, and produce that iconic performance sound. We have complete cat-back exhaust systems and power-adding headers made from lightweight aluminized steel, or from rugged stainless steel, with many available polished to a show-ready shine. Or choose from exhaust parts such as the individual pipes, tubes, flanges, and turndowns you need for a custom setup, plus...
Your car or truck was originally equipped with a restrictive, small-diameter exhaust system that was designed for one purpose: to be as quiet as possible. Uncork your vehicle’s exhaust flow with a performance exhaust system and you’ll restore lost horsepower and torque, and produce that iconic performance sound. We have complete cat-back exhaust systems and power-adding headers made from lightweight aluminized steel, or from rugged stainless steel, with many available polished to a show-ready shine. Or choose from exhaust parts such as the individual pipes, tubes, flanges, and turndowns you need for a custom setup, plus replacement or performance mufflers from mellow to aggressive, and even catalytic converters to keep you legal.
Showing In Stock Items. Show All 1231 Items.
Catalytic Converters, ANSA Replacement, 2.50 in. Inlet/Outlet, Slip-Fit, 17.0 in. Length, 3-Way Design, OBD II Universal, Each
Part Number: APH-608996
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Catalytic Converters, ANSA Replacement, 3.00 in. Inlet/Outlet, Slip-Fit, 17.0 in. Length, 3-Way Design, OBD II Universal, Each
Part Number: APH-608997
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Catalytic Converters, ANSA Replacement, 2.25 in. Inlet/Outlet, Slip-Fit, 17.0 in. Length, 3-Way Design, OBD II Universal, Each
Part Number: APH-608995
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Catalytic Converter, Direct Fit, Stainless Steel, Cadillac, Chevy, GMC, Each
Part Number: WLK-83482
Estimated Ship Date: Today
Estimated Ship Date: Today
Catalytic Converter, CalCat Universal, One Inlet, 2.25 in., One Outlet, 2.25 in., Stainless Steel, Ceramic Honeycomb, Each
Part Number: WLK-83402
Estimated Ship Date: Today
Estimated Ship Date: Today
Catalytic Converter, CalCal Universal, One Inlet, 3 in., One Outlet, 3 in., Stainless Steel, Ceramic Honeycomb, Each
Part Number: WLK-83404
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-83403
Estimated Ship Date: Today
Estimated Ship Date: Today
Catalytic Converter, CalCat Universal, One Inlet, 2.50 in., One Outlet, 2.50 in. Stainless Steel, Monolithic Catalyst, Each
Part Number: WLK-83508
Estimated Ship Date: Today
Estimated Ship Date: 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
Estimated Ship Date: Today
Estimated Ship Date: 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
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Catalytic Converter, CalCat, Direct Fit, Stainless Case, Toyota, Each
Part Number: WLK-81978
Estimated Ship Date: Today
Estimated Ship Date: 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: Today
Estimated Ship Date: Today
Catalytic Converter, Cal-Cat Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Lexus, Toyota, Each
Part Number: WLK-83288
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 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-83506
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Catalytic Converter, Direct Fit, Stainless Steel, Jeep, 4.0L, Each
Part Number: WLK-81861
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Catalytic Converter, Cal-Cat Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Toyota, Each
Part Number: WLK-83454
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Catalytic Converter, Cal-Cat Universal, 2.000 in. Slip Fit Inlet, 2.000 in. Slip Fit Outlet, Ceramic Honeycomb, Universal, Each
Part Number: WLK-81810
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Catalytic Converter, CalCat, Stainless Case, 2.500 in. Inlet/2.500 in Outlet, Chevy, Dodge, Ford, Toyota, Each
Part Number: WLK-80906
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Converter-CalCat-Direct Fit
Part Number: WLK-84174
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Catalytic Converter, Cal-Cat Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Nissan, Each
Part Number: WLK-83699
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Catalytic Converter with Integrated Exhaust Manifold, Walker CalCat Manifold Converter
Part Number: WLK-84371
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
Converter-CalCat-Direct Fit
Part Number: WLK-84275
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Catalytic Converters, Direct-Fit, Stock Flange Inlet, 2.25 in. Stock Flange Outlet, Stainless Steel Case, 49.00 in. Overall Length, Ford, Mazda, Each
Part Number: WLK-84226
Not Yet Reviewed
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
Catalytic Converter, Direct-Fit, Stainless Steel, Chevy, GMC, Each
Part Number: WLK-81961
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Catalytic Converter, Cal-Cat Direct Fit, Stock Flange Inlet, Stock Flange Outlet, Ceramic Honeycomb, Heat Shield, Nissan, Each
Part Number: WLK-83179
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
