Header Reducers & Extensions

Header Reducers, 3-Bolt Flange, 3.00 in. Inlet, 2.50 in. Outlet, Steel, Painted, Pair

Part Number: HOK-11040HKR

4.78 out of 5 stars ( 50 )

Estimated Ship Date: Today

Header Reducers, 3-Bolt Flange, Welded, 3.50 in. Inlet, 3.00 in. Outlet, Steel, Painted, Pair

Part Number: HOK-11036HKR

4.94 out of 5 stars ( 17 )

Estimated Ship Date: Today

Header Reducers, Slip Fit, 3 in. Inlet, 2.5 in. Outlet, Steel, Aluminized, Pair

Part Number: FLO-R3025

5.0 out of 5 stars ( 26 )

Estimated Ship Date: Today

Header Reducers, 3-Bolt Flange, 3.00 in. Inlet, 3.00 in. Outlet, Steel, Painted, Pair

Part Number: HOK-11032HKR

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

Header Reducers, 3-Bolt Flange, 2.50 in. Inlet, 2.50 in. Outlet, Steel, Painted Black, Pair

Part Number: HOK-11026HKR

4.66 out of 5 stars ( 29 )

Estimated Ship Date: Today

Header Extensions, Hugger Toobs, Steel, Natural, 2 1/2 in. Collector, Pair

Part Number: BIG-10010FLT

4.05 out of 5 stars ( 19 )

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

Header Reducers, 3-Bolt Flange, 2.5 in. Inlet, 2.25 in. Outlet, Steel, Natural, Pair

Part Number: BIG-10005FLT

4.17 out of 5 stars ( 12 )

Estimated Ship Date: Today

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

Part Number: BIG-10110FLT

3.67 out of 5 stars ( 9 )

Estimated Ship Date: Today

Header Reducer, Stainless Steel, Bolt-On, 3 in. 3-bolt Flange, 2.50 in. Out, 6.0 in. OAL, Each

Part Number: STW-HCA32-5

5.0 out of 5 stars ( 4 )

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

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: Today

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: Today

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Collector Rings, 3.50 in., 3-Bolt Flange, Steel, Natural, Pair

Part Number: HOK-11435HKR

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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: Today

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: Today

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

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

• Drop Ship
• Special Order

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: 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, 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: Today

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: Sep 22, 2025 if ordered today

• Drop Ship
• 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: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Lead Pipe Kit: Factory Connect 2015-2025 Mustang GT

Part Number: STW-M15LDSFC

Not Yet Reviewed

Estimated Ship Date: Oct 15, 2025 if ordered today

• Free Shipping
• Special Order

Lead Pipe Kit: Performance Connect 2015-2025 Mustang GT

Part Number: STW-M15LDSPC

Not Yet Reviewed

Estimated Ship Date: Oct 15, 2025 if ordered today

• Free Shipping
• Special Order

Lead Pipe Kit: Aftermarket Connect 2015-2025 Mustang GT

Part Number: STW-M15LDSLG

Not Yet Reviewed

Estimated Ship Date: Oct 20, 2025 if ordered today

• Free Shipping
• Special Order