Header Reducers

Collector Flange, Stainless Steel, Natural, 3 in. Diameter, Ball and Socket Flange, 16-Gauge, Each

Part Number: KOK-7106SFEMALE

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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

Part Number: PYE-PVR13S

4.92 out of 5 stars ( 25 )

Estimated Ship Date: Today

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

Part Number: PYE-PVR10S

4.89 out of 5 stars ( 27 )

Estimated Ship Date: Today

Header Reducers, Stainless, Natural, Ball and Socket Flange, 3.0 in. Collector, 3.0 in. Reducer Outlet, Pair

Part Number: HED-22119

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

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

Part Number: SUM-626120

Not Yet Reviewed

Estimated Ship Date: Today

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

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: Today

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: 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

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: Today

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA3-53O2

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

• Drop Ship
• Special Order