Header Reducers

Header Reducers, Stainless, Natural, Ball and Socket Flange, 3.0 in. Collector, 2.5 in. Reducer Outlet, Pair

Part Number: HED-22115

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Header Reducers, 3-Bolt Flange, 3.50 in. Inlet, 2.50 in. Outlet, Steel, Painted, Pair

Part Number: HOK-11035HKR

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Today

Header Reducers, Stainless, Natural, Ball and Socket Flange, 3.0 in. Collector, 3.0 in. Reducer Outlet, Pair

Part Number: HED-22119

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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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 )

Estimated Ship Date: Today

Header Reducers, 2.5 in. To 2.25 in., Angled Approximately 30 Degrees, 3-Bolt Flange, Steel Construction, Painted Finish, Pair

Part Number: SNH-A-RED25

4.08 out of 5 stars ( 12 )

Estimated Ship Date: Today

Header Reducers, Ball and Socket Flange, 3 in. Inlet, 2.25 in. Outlet, Steel, Painted, Pair

Part Number: HED-21114

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Today

Header Reducers, 3.000 in. Diameter, Ball and Socket Flange, Steel, Aluminized, Each

Part Number: HED-21154

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA3-52-5O2

Not Yet Reviewed

Estimated Ship Date: Jun 26, 2026 if ordered today

• Drop Ship
• Special Order

Header Reducers, 3-Bolt Flange, 3 in. Inlet, 2.5 in. Outlet, Steel, Natural, Pair

Part Number: HED-21103

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Today

Header Reducers, 2.50 in. Inlet, 2.50 in. Outlet, 3-Bolt Flange, Stainless Steel, Natural, Includes, Flanges, Gaskets, Hardware, Kit

Part Number: HED-22105

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Header Reducer, Ball and Socket Flange, 2.5 in. Inlet, 2 in. Outlet, Steel, Painted, Each

Part Number: HED-21116

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Header Reducers, 2.500 in. Diameter, Ball and Socket Flange, Steel, Aluminized, Each

Part Number: HED-21153

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Today

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA32-25O2

Not Yet Reviewed

Estimated Ship Date: Jun 25, 2026 if ordered today

• Drop Ship
• Special Order

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

Part Number: HED-21126

3.0 out of 5 stars ( 8 )

Estimated Ship Date: Today

Header Reducers, 3-Bolt Flange, 3.00 in. Inlet, 2.125 in. Outlet, Steel, Painted, Pair

Part Number: HOK-11030HKR

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Header Reducers, Straight, 3-bolt Flange, Steel, Painted, 2.5 in. To 2.25 in., Pair

Part Number: SNH-S-RED25

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Header Reducers, 3-Bolt Flange, 3.00 in. Inlet, 3.00 in. Outlet, Steel, Painted, Pair

Part Number: HOK-11032HKR

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Today

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

Part Number: HED-21134

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

Header Reducers, Ball and Socket Flange, 3 in. Inlet, 2.5 in. Outlet, Steel, Aluminized, Pair

Part Number: HED-21112

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

Header Reducers, 3-Bolt Flange, 3 in. Inlet, 3 in. Outlet, Steel, Aluminized, Pair

Part Number: HED-21121

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Header Reducers, 3-Bolt Flange, 3.00 in. Inlet, 2.50 in. Outlet, Steel, Ceramic Coated, Pair

Part Number: HOK-110401HKR

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Today

• Free Shipping

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA2-52-25O2

Not Yet Reviewed

Estimated Ship Date: Today

Header Reducer, Ball/Socket Flange, 3 in. Inlet, 2.5 in. Outlet, Steel, Pair

Part Number: HED-21141

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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 )

Estimated Ship Date: Today

Header Reducers, Stainless, Natural, Ball and Socket Flange, 2.5 in. Collector, 2.5 in. Reducer Outlet, Pair

Part Number: HED-22129

Not Yet Reviewed

Estimated Ship Date: Today

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