Header Reducers

Header Reducer, Steel, Aluminized, 3-Bolt Flange, 3.5 in. Inlet, 2.5 in. Outlet, Each

Part Number: JEX-AWHC312

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/27/2025

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA3-53O2

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Free Shipping
• Special Order

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: Nov 17, 2025 if ordered today

• Special Order

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: Nov 10, 2025 if ordered today

• Drop Ship
• Special Order

Exhaust Header Reducers, 3 in. Inlet, 2.5 in. Outlet, 3-Bolt, Steel, Chrome, Pair

Part Number: SPE-4641

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/27/2025

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA2-52O2

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

• Free Shipping

EXHAUST REDUCER WITH O2

Part Number: STW-TT325-O2

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Special Order

3.0" ID - 3.0" OD TUBING TRANS

Part Number: STW-TT33-O2

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Special Order

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: Oct 27, 2025 if ordered today

• Special Order

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA3-52-5O2

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

• Free Shipping

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: Dec 11, 2025 if ordered today

• Drop Ship
• Special Order

Header Reducers, Stainless, Natural, Ball and Socket Flange, 2.5 in. Collector, 2.0 in. Reducer Outlet, Pair

Part Number: HED-22123

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Reducers, 3-Bolt Flange, 3 in. Inlet, 2.5 in. Outlet, Steel, Natural, Set of 10

Part Number: BIG-10002FLT

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA3-53-5O2

Not Yet Reviewed

Estimated Ship Date: Dec 9, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA32-25O2

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

• Free Shipping
• Special Order

Attaches Kooks headers to factory OEM cat-back system. Not needed if using Kooks complete exhaust system

Part Number: KOK-22513300

Not Yet Reviewed

Estimated Ship Date: Dec 16, 2025 if ordered today

• Free Shipping
• Special Order

REDUCER 2 1/2" ID TO 2" OD

Part Number: SCH-2520

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

• Special Order

REDUCER 2 1/2" ID TO 2 1/4" OD

Part Number: SCH-2522

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

• Special Order

REDUCER 2 3/4" ID TO 3" OD

Part Number: SCH-2730

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

• Special Order

REDUCER 2" ID TO 3" OD

Part Number: SCH-2030

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

• Special Order

REDUCER 2 1/4" ID TO 3" OD

Part Number: SCH-2230

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

• Special Order

REDUCING ADAPTER 3.5 TO 3.0

Part Number: AFC-91-120300

Not Yet Reviewed

Estimated Ship Date: Nov 19, 2025 if ordered today

• Special Order