Header Reducers & Extensions

Header Collector Extensions, 3.0 in. 3-Bolt Flange, 3 in. Pipe, Pair

Part Number: HOK-11230HKR

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/7/2025

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Reducer Cone Collectors, Weld-on, Stainless Steel, 3.5 in. Collector Diameter, 3.0 in. Reducer Diameter, Each

Part Number: KOK-9051S

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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

Part Number: BIG-10110FLT

3.67 out of 5 stars ( 9 )

Estimated Ship Date: Monday 7/7/2025

Header Reducers, Header Buddies, Aluminumized Steel, 3-Bolt Flange, 3.0 in. Inlet, 3.0 in. Outlet, Pair

Part Number: JEX-AHB3

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/7/2025

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 )

Estimated Ship Date: Monday 7/7/2025

Header Reducer 3" with welded rings small end 2 1/2" pair

Part Number: TRD-9374

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/7/2025

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: Monday 7/7/2025

Header Collector Extensions, Slip-On, 3.50 in. Diameter, 18.0 in. Length, Pair

Part Number: SUM-670168

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/7/2025

Header Reducer, Stainless Steel, Bolt-On, 3 in. 3-bolt Flange, 2.50 in. Out, 6.0 in. OAL, Each

Part Number: STW-HCA32-5

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/7/2025

Header Reducers, 3-Bolt Flange, 2.50 in. Inlet, 2.00 in. Outlet, Steel, Natural, Pair

Part Number: SUM-G4755ID

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Jul 24, 2025 if ordered today

Header Collector Adapter, Reducer, 3.5 in. 3-Bolt Flange, 2.5 in.Out., 6.0 in. OAL., 304L SS, Each

Part Number: STW-HCA3-52-5

Not Yet Reviewed

Estimated Ship Date: Monday 7/7/2025

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

Part Number: BIG-10004FLT

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 7/7/2025

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: Monday 7/7/2025

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA2-52-25O2

Not Yet Reviewed

Estimated Ship Date: Monday 7/7/2025

Header Reducers, Steel, Slip-On, 2 1/2 in. Primary Tube Diameter, 2.00 in. Collector Diameter, Pair

Part Number: HED-21111

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

Collector Reducers, 3-Bolt, 3.5 in. to 2.5 in., Gaskets, Fasteners, Pair

Part Number: PTE-H7236

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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: Monday 7/7/2025

Header Reducers, Collector Reducers, 3-bolt Flange, 2.500 in. Collector Diameter, 2.250 in. Reducer Outlet Diameter, Steel, Zinc Finish, Gaskets, Kit

Part Number: PTE-H7229

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 7/7/2025

Header Collector Extensions, 3.0 in. Universal Flange, 2.25 in. Pipe, Pair

Part Number: HED-18805

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/7/2025

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

Part Number: HOK-110401HKR

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 7/7/2025

Exhaust Header Extension, Stainless Steel, 3-Bolt Flange, 2.50 in. Diameter, 6 in. Length, Each

Part Number: STW-HCA2-52-5

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

Header Reducer, 3-Bolt, 4-Bolt, Universal Flange, 3 in. Inlet, 2.25 in. Outlet, Steel, Natural, Each

Part Number: HED-21108

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

Collector Rings, 3.50 in., 3-Bolt Flange, Steel, Natural, Pair

Part Number: HOK-11435HKR

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 7/7/2025

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: Monday 7/7/2025

Exhaust Collector Reducer, Steel, Natural, 3.5 in. Inlet, 2.5 in. Outlet, 4.625 in. Length, Each

Part Number: SCH-2535

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025