Header Reducers & Extensions

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

Part Number: BIG-10002FLT

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Estimated Ship Date: Oct 22, 2025 if ordered today

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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

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Estimated Ship Date: Nov 24, 2025 if ordered today

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

Part Number: HED-22123

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Estimated Ship Date: Dec 23, 2025 if ordered today

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VERTEX FORMED EXHAUST VALVEBELLOWS

Part Number: VPX-817978

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Estimated Ship Date: Oct 31, 2025 if ordered today

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VERTEX FORMED EXHAUST VALVEBELLOWS

Part Number: VPX-817999

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Estimated Ship Date: Oct 31, 2025 if ordered today

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HEADER COLLECTOR ADAPTER

Part Number: STW-HCA32-25O2

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Lead Pipe Kit: Factory Connect 2015-2025 Mustang GT

Part Number: STW-M15LDSFC

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Estimated Ship Date: Nov 10, 2025 if ordered today

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REDUCING ADAPTER 3.5 TO 3.0

Part Number: AFC-91-120300

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Estimated Ship Date: Tomorrow 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

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Estimated Ship Date: Oct 24, 2025 if ordered today

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Lead Pipe Kit: Performance Connect 2015-2025 Mustang GT

Part Number: STW-M15LDSPC

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Estimated Ship Date: Oct 30, 2025 if ordered today

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

Part Number: KOK-22513300

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Estimated Ship Date: Nov 28, 2025 if ordered today

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REDUCER 2 3/4" ID TO 3" OD

Part Number: SCH-2730

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Estimated Ship Date: Oct 20, 2025 if ordered today

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REDUCER 2" ID TO 3" OD

Part Number: SCH-2030

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Estimated Ship Date: Oct 20, 2025 if ordered today

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REDUCER 2 1/4" ID TO 3" OD

Part Number: SCH-2230

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Estimated Ship Date: Oct 20, 2025 if ordered today

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REDUCER 2 1/2" ID TO 2" OD

Part Number: SCH-2520

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Estimated Ship Date: Oct 20, 2025 if ordered today

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

Part Number: SCH-2522

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Estimated Ship Date: Oct 20, 2025 if ordered today

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Exhaust Collector Reducer, Steel, Natural, 3.5 in. Inlet, 3.5 in. Outlet, 5.000 in. Length, Each

Part Number: SCH-3535

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Estimated Ship Date: Oct 20, 2025 if ordered today

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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: Oct 20, 2025 if ordered today

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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: Oct 20, 2025 if ordered today

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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: Oct 20, 2025 if ordered today

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Lead Pipe Kit: Aftermarket Connect 2015-2025 Mustang GT

Part Number: STW-M15LDSLG

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Estimated Ship Date: Nov 17, 2025 if ordered today

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