Header Reducers & Extensions

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: Monday 5/5/2025

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 5/5/2025

• Free Shipping

Collector Bolts, Hex Head, Stainless Steel, Natural, 3/8 in.-16 x 1.0 in. Long, Set of 6

Part Number: SUM-G1590HS

4.06 out of 5 stars ( 17 )

Estimated Ship Date: Monday 5/5/2025

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 5/5/2025

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 5/5/2025

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 5/5/2025

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 5/5/2025

Header Reducer, Steel, Aluminized, 3-Bolt Flange, 2.5 in. Inlet, 2.5 in. Outlet, Each

Part Number: JEX-AWHC212

4.15 out of 5 stars ( 27 )

Estimated Ship Date: Monday 5/5/2025

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: Monday 5/5/2025

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 5/5/2025

Header Collector Reducers, Steel, Zinc Plated, 3-Bolt, 3.00 in. Diameter, Composite Gaskets, Pair

Part Number: PTE-H7244

4.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 5/5/2025

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 5/5/2025

Collector Flanges, 3-Bolt, 2.5 in. I.D., Gaskets, Fasteners, Set

Part Number: PTE-H7259

4.63 out of 5 stars ( 16 )

Estimated Ship Date: Monday 5/5/2025

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 5/5/2025

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: May 12, 2025 if ordered today

Header Collector Extensions, 3.0 in. 3-Bolt Flange, 2.25 in. Pipe, Pair

Part Number: HED-18803

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Monday 5/5/2025

Header Reducers, 3-Bolt Flange, 3 in. Inlet, 2.25 in. Outlet, 409 Stainless Steel, Natural, Pair

Part Number: SUM-G4750SS

2.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/5/2025

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA2-52-25O2

Not Yet Reviewed

Estimated Ship Date: Monday 5/5/2025

• Free Shipping

3 1/2" 3 bolt, 3 1/2" od outlet, 6" overall length. 304 S/S Construction, tig welded, 3/8" thick laser cut fl

Part Number: STW-HCA3-53-5

Not Yet Reviewed

Estimated Ship Date: Jun 2, 2025 if ordered today

• Drop Ship
• Special Order

Header Reducers, Aluminumized Steel, 3-Bolt Flange, 3.0 in. Inlet, 2.5 in. Outlet, Pair

Part Number: JEX-AHC1

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Monday 5/5/2025

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: Jul 21, 2025 if ordered today

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 5/5/2025

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

Part Number: BIG-10511FLT

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 5/5/2025

Header Reducers, 3-Bolt Flange, 2.5 in. Inlet, 2.0 in. Outlet, Steel, Zinc, Gaskets, Hardware, Pair

Part Number: PTE-H7250

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 5/5/2025

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 5/5/2025