Header Reducers & Extensions

Exhaust Header Extension, Stainless Steel, 3-Bolt Flange, 2.50 in. Diameter, 6 in. Length, Each

Part Number: STW-HCA2-52-5

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Exhaust Reducer, Stainless Steel, 2.5 in. to 2.0 in. Diameter, Natural, Each

Part Number: STW-HCA2-52

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Collector Reducer 2 1/2"

Part Number: PTE-H7249

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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: Tomorrow

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: Aug 19, 2025 if ordered today

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Header Collector Adapter, Reducer, 2.5 in. 3-Bolt Flange, 2.25 in.Out., 6.0 in. OAL., 304L SS, Each

Part Number: STW-HCA2-52-25

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Estimated Ship Date: Tomorrow

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: Tomorrow

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: Tomorrow

EXHAUST REDUCER WITH O2

Part Number: STW-TT325-O2

Not Yet Reviewed

Estimated Ship Date: Jul 30, 2025 if ordered today

• Special Order

Collector Reducers, 3-Bolt, 2.50 in. to 2.25 in., O2 Sensor Bungs, Gaskets, Fasteners, Pair

Part Number: PTE-H7232

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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: Tomorrow

Header Reducer, Terminator Reducers/Street Hookups, 3 Bolt, Inlet 3.5 in., Outlet 2.5 in., Each

Part Number: BIG-10016FLT

Not Yet Reviewed

Estimated Ship Date: Aug 4, 2025 if ordered today

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3.0" ID - 3.0" OD TUBING TRANS

Part Number: STW-TT33-O2

Not Yet Reviewed

Estimated Ship Date: Jul 31, 2025 if ordered today

• Special Order

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

Part Number: STG-8933B

Not Yet Reviewed

Estimated Ship Date: Aug 4, 2025 if ordered today

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Header Reducers, Header Buddies, Aluminumized Steel, 3-Bolt Flange, 3 in. Inlet, 2.25 in. Outlet, Pair

Part Number: JEX-AHB2

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Collector Bolts, Hex Head, Locking, Steel, Nickel Plated, 10mm x 1.50 Thread, 75mm UHL, Set of 6

Part Number: STG-8950F

Not Yet Reviewed

Estimated Ship Date: Tomorrow

COLLECTOR FLANGE

Part Number: PTE-H7269

Not Yet Reviewed

Estimated Ship Date: Aug 12, 2025 if ordered today

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Collector Bolts, Hex Head, Locking, Steel, Nickel Plated, 10mm x 1.5 Thread, Set of 4

Part Number: STG-8950M

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Collector Bolts, Hex Head, Locking, Steel, Nickel Plated, 10mm x 1.50 Thread, 65mm UHL, Set of 6

Part Number: STG-8950N

Not Yet Reviewed

Estimated Ship Date: Tomorrow

LS1, LS2, LS6 Chevy w/8mm x 30mm, 1-1/4" underhead, 12 pt head, set of 12

Part Number: STG-8930B

Not Yet Reviewed

Estimated Ship Date: Aug 4, 2025 if ordered today

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

Part Number: SUM-670166

Not Yet Reviewed

Estimated Ship Date: Aug 21, 2025 if ordered today

• Special Order

Header Collector Extensions, 5.0 in., Slip-Fit, 16-Gauge, Fits 5.0 in. Pipe, 48 in. Length, Each

Part Number: SCH-480050

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Estimated Ship Date: Tomorrow if ordered today

• Special Order

Header Collector Extensions, 5.0 in., Slip-Fit, 16-Gauge, Fits 5.0 in. Pipe, 48 in. Length, Double Swedged Ends, Each

Part Number: SCH-480050DS

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Estimated Ship Date: Tomorrow if ordered today

• Special Order

Header Collector Extensions, 5.0 in., Slip-Fit, 16-Gauge, Fits 5.0 in. Pipe, 36 in. Length, Each

Part Number: SCH-360050

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Estimated Ship Date: Tomorrow if ordered today

• Special Order

Header Collector Adapter, Reducer, 3.0 in. 3-Bolt Flange, 2.25 in.Out., 6.0 in. OAL., 304L SS, Each

Part Number: STW-HCA32-25

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

• Special Order