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...

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Hedman Oxygen Sensor Reducers with 3 Inch Outlet 21133

Hedman Oxygen Sensor Reducers with 3 Inch Outlet 21133

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 3 in. Inlet, 3 in. Outlet, Steel, Painted, Each

Part Number: HED-21133

4.67 out of 5 stars ( 15 )

Estimated Ship Date: Today

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Summit Racing™ Exhaust Reducers with 2.5 Inch Outlet SUM-626102

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 3 in. Inlet, 2.5 in. Outlet, Steel, Painted, Each

Part Number: SUM-626102

3.5 out of 5 stars ( 4 )

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Hedman Oxygen Sensor Reducers with 3 Inch Outlet 22126

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 3.00 in. Inlet, 3.00 in. Outlet, Stainless Steel, Natural, Each

Part Number: HED-22126

3.75 out of 5 stars ( 4 )

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Hedman Oxygen Sensor Reducers with 2.25 Inch Outlet 21107

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 3 in. Inlet, 2.25 in. Outlet, Steel, Natural, Each

Part Number: HED-21107

4.0 out of 5 stars ( 1 )

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Haltech Weld Fittings HT-010702

Weld-In Bungs and Fittings, Oxygen Sensor Bung Type, M18 x 1.5 Female Thread, Stainless Steel, Each

Part Number: HTH-HT-010702

5.0 out of 5 stars ( 2 )

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Haltech Weld Fittings HT-010701

Oxygen Sensor Bung, Weld-in, Aluminum, M18 x 1.5 Female Threads, Each

Part Number: HTH-HT-010701

Not Yet Reviewed

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Hedman Oxygen Sensor Reducers with 2 Inch Outlet 21106

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 2.5 in. Inlet, 2 in. Outlet, Steel, Natural, Each

Part Number: HED-21106

Not Yet Reviewed

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Patriot Oxygen Sensor Reducers with 2.5 Inch Outlet H7233

Collector Reducers, 3-Bolt, 3 in. to 2.5 in., O2 Sensor Bungs, Gaskets, Fasteners, Pair

Part Number: PTE-H7233

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Patriot Oxygen Sensor Reducers with 2.25 Inch Outlet H7232

Collector Reducers, 3-Bolt, 2.50 in. to 2.25 in., O2 Sensor Bungs, Gaskets, Fasteners, Pair

Part Number: PTE-H7232

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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Estimated Ship Date: Nov 30, 2026 if ordered today

BBK Exhaust Flow Tubes 14670

Header Collector Ball Flange, 3.5 in. Collector, 2.75 in. Pipe, Steel, Natural, 12 in. Long, Features Oxygen Sensor Bung, Pair

Part Number: BBK-14670

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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LG Billet USA Weld-In Bungs LG-EXH-001

Bung, Oxygen Sensor, Weld-In, Stainless Steel, 18mm x 1.5, Female Threads, Each

Part Number: LGB-LG-EXH-001

Not Yet Reviewed

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Summit Racing™ Exhaust Reducers with 2.25 Inch Outlet SUM-626103

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 2.5 in. Inlet, 2.25 in. Outlet, Steel, Painted, Each

Part Number: SUM-626103

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Y-Pipe, Exhaust, Steel, Aluminized, 2.4 in. Outlet Diameter, Oxygen Sensor Bung, Ford, Mercury, Mazda, 3.0L

Part Number: WLK-50433

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Dec 7, 2026 if ordered today

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Estimated Ship Date: Dec 7, 2026 if ordered today

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5.0 out of 5 stars ( 3 )

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Summit Racing™ Exhaust Reducers with 2.5 Inch Outlet SUM-626104

Header Reducer, Ball/Socket Flange, 3 in. Inlet, 2.5 in. Outlet, Oxygen Sensor Fitting, Steel, Each

Part Number: SUM-626104

1.0 out of 5 stars ( 1 )

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