Header Reducers & Extensions

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 5/12/2025

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 5/12/2025

• Free Shipping

Collector Bolts, Split Lock, 3/8-16 in., 12-Point Head, 1.000 in. UHL, Steel, Black Oxide, Set of 6

Part Number: SUM-910130

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

Header Reducer, 3-Bolt Flange, 3.5 in. Inlet, 3 in. Outlet, Stainless Steel, Each

Part Number: STW-HCA3-53

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

Header Collector Reducers, Steel, Zinc Plated, 3-Bolt, 2.50 in. Diameter, Composite Gaskets, Pair

Part Number: PTE-H7242

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 5/12/2025

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: Jun 9, 2025 if ordered today

Exhaust Pipe Extension; Hedman X-Tension; Exhaust Pipe Extension; Uni-Fit; 2.25 in. Tube; w/2.5 in. Ball And S

Part Number: HED-18808

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 5/12/2025

Header Collector Extensions, 3.5 in., Slip-Fit, 18-Gauge, Fits 3.5 in. Pipe, 12 in. Length, Each

Part Number: SCH-120035

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/12/2025

Header Reducers, 3-Bolt Flange, 2.5 in. Inlet, 2 in. Outlet, Steel, Natural, Pair

Part Number: HED-21101

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

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 5/12/2025

Header Collector Extensions, 3.0 in., Slip-Fit, 18-Gauge, Fits 3.0 in. Pipe, 48 in. Length, Each

Part Number: SCH-480030

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 5/12/2025

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 5/12/2025

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: Monday 5/12/2025

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 5/12/2025

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

Part Number: WLK-88307

Not Yet Reviewed

Estimated Ship Date: May 27, 2025 if ordered today

Exhaust Ball Flanges, 2.50 in. O.D., 4.00 in. Length, Stainless Steel, Female, Male, Flanges, Bolts and Nuts, Kit

Part Number: HED-21155

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

• Free Shipping

Header Starter Tubes, Ball/Socket, 2-Bolt Flange, 409 Stainless Steel, 2.5 in. Diameter, with JBA-1653, Pair

Part Number: JBA-1653ST

4.5 out of 5 stars ( 2 )

Estimated Ship Date: May 20, 2025 if ordered today

Reducers 3 in. x 2.125 in., 3 Bolt Flange, Pair

Part Number: BIG-10007FLT

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 5/12/2025

SB Chevy Header, 3/8" x 16", 1-1/4 Bolt Kit 12 PT head, set of 12

Part Number: STG-8931B

Not Yet Reviewed

Estimated Ship Date: May 28, 2025 if ordered today

• Drop Ship
• Special Order

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 5/12/2025

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

Part Number: HED-21110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

Header Reducer, Ball and Socket Flange, 3 in. Inlet, 2.25 in. Outlet, Steel, Painted, Each

Part Number: HED-21117

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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: Monday 5/12/2025

Header Collector Extensions, 3.5 in., Slip-Fit, 18-Gauge, Fits 3.5 in. Pipe, 48 in. Length, Each

Part Number: SCH-480035

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

• Oversize $7.99

Exhaust Collector Flanges, 2-Bolt, 2.0 in. I.D., Gaskets, Fasteners, Set

Part Number: PTE-H7257

3.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 5/12/2025