Header Reducers & Extensions

Header Collector Flange, Stainless Steel, 3-Bolt, 2.50 in. Diameter Hole, .375 in. Thick, Each

Part Number: PYE-HVF10S

4.76 out of 5 stars ( 17 )

Estimated Ship Date: Today

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

Part Number: SNH-A-RED25

4.08 out of 5 stars ( 12 )

Estimated Ship Date: Today

Collector Adapter 3" inlet 3" outlet with O2 bung

Part Number: STW-HCA33-O2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

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, 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, 3.50 in. Inlet, 2.50 in. Outlet, Steel, Natural, Pair

Part Number: SUM-G4757

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

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

Part Number: PTE-H7246

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Today

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: Today

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: Today

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

Part Number: PYE-PVR19S

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Today

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

Part Number: SUM-626101

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Collector Bolts, Hex Head, Locking, Steel, Nickel Plated, 3/8 in.-16 Thread, 2 in. Length, Set of 6

Part Number: STG-8950A

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

Header Reducers, 3-Bolt Flange, 2.5 in. Inlet, 2.25 in. Outlet, Steel, Natural, Pair

Part Number: BIG-10005FLT

4.17 out of 5 stars ( 12 )

Estimated Ship Date: Today

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

Part Number: SUM-G4755

4.89 out of 5 stars ( 9 )

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

Part Number: HED-21153

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Today

Header Extension, Afterburner Thrust Toobs, Bolt-On, 3 Bolt, 3.00 in. Inlet/Outlet, 12.00 in. Length, Pair

Part Number: BIG-10511FLT

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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: Today

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: Today

Header Collector Extensions, Slip-On, 3.00 in. Diameter, 18.0 in. Length, Pair

Part Number: SUM-670167

Not Yet Reviewed

Estimated Ship Date: Today

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

Header Reducers, 3-Bolt Flange, 3.5 in. Inlet, 2.5 in. Outlet, Stainless Steel, 12.000 in. Long, Polished, Pair

Part Number: SUM-626123

Not Yet Reviewed

Estimated Ship Date: Today

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: Today

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: Oct 24, 2025 if ordered today

• Drop Ship
• Special Order