Header Reducers & Extensions

Header Collector Reducers, Steel, Zinc Plated, 3-Bolt, 3.50 in. Diameter, Composite Gaskets, Pair

Part Number: PTE-H7245

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 5/12/2025

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: Monday 5/12/2025

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: Monday 5/12/2025

Header Collector Adapter, Reducer, 3.0 in. 3-Bolt Flange, 3.0 in.Out., 6.0 in. OAL., 304L SS, Each

Part Number: STW-HCA33

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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: Monday 5/12/2025

Header Reducers, 3-Bolt Flange, 3.5 in. Inlet, 2.5 in. Outlet, Steel, Zinc, Gaskets, Hardware, Pair

Part Number: PTE-H7252

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 5/12/2025

Collector Flanges, 3-Bolt, 3.0 in. I.D., Gaskets, Fasteners, Set

Part Number: PTE-H7260

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 5/12/2025

Header Reducers, 3-Bolt Flange, 3.5 in. Inlet, 2.5 in. Outlet, Steel, Natural, Pair

Part Number: HED-21104

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/12/2025

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: Jun 20, 2025 if ordered today

• Free Shipping

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

Part Number: SUM-G4757ID

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 5/12/2025

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 5/12/2025

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

Part Number: SUM-626101

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

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

Part Number: SUM-G4757

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 5/12/2025

Header Reducers, Collector Reducers, 3-bolt Flange, 2.500 in. Diameter, Stainless Steel, Natural, Each

Part Number: STW-HCA2-52-5O2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 9, 2025 if ordered today

• Free Shipping

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 5/12/2025

Collector Flanges, 3-Bolt, 3.5 in. I.D., Gaskets, Fasteners, Set

Part Number: PTE-H7261

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/12/2025

Header Collector Flange, Stainless Steel, 3-Bolt, 3.50 in. Diameter Hole, .375 in. Thick, Each

Part Number: PYE-HVF16S

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 5/12/2025

Header Bolt; Collecter Bolt Kit; Header Bolt; BAll And Socket Style Collector; Zinc Plated; 6 pc.

Part Number: HED-09014

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 5/12/2025

Collector Bolts, Hex Head, Locking, Steel, Nickel Plated, 3/8 in.-16 Thread, Set of 6

Part Number: STG-8950S

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 5/12/2025

Header Starter Tubes, Ball and Socket, 2-Bolt Flange, 304 Stainless Steel, 2.5 in. Diameter, O2 Bungs, Pair

Part Number: JBA-31650-1ST

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

• Free Shipping

Collector Bolts, Hex Head, Locking, Steel, Nickel Plated, 3/8 in.-16 Thread, 1 in. Length, Set of 6

Part Number: STG-8950

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Monday 5/12/2025

Collector Bolts, Hex Head, Steel, Grade 5, 1.25 in. Long, Set of 6

Part Number: SNH-COLLBOLTSET

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 5/12/2025

Header Reducers, 3-Bolt Flange, 3 in. Inlet, 2 1/4 in. Outlet, Steel, Natural, Pair

Part Number: PTE-H7251

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 5/12/2025

Header Collector Extensions, 3-Bolt, 2.50 in. Diameter, 18.0 in. Length, Gaskets, Fasteners, Pair

Part Number: SUM-670161

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/12/2025

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: Monday 5/12/2025