Header Reducers & Extensions

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: Monday 7/7/2025

Header Reducers, Collector Reducers, 3-bolt Flange, 2.500 in. Diameter, Stainless Steel, Natural, Each

Part Number: STW-HCA2-52-5O2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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: Monday 7/7/2025

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: Monday 7/7/2025

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: Monday 7/7/2025

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA2-52-25O2

Not Yet Reviewed

Estimated Ship Date: Monday 7/7/2025

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: Monday 7/7/2025

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: Monday 7/7/2025

Collector Adapter 3" inlet 3" outlet with O2 bung

Part Number: STW-HCA33-O2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

Header Reducers, Collector Reducers, 3-bolt Flange, 3.000 in. Collector Diameter, 2.500 in. Reducer Outlet Diameter, Stainless Steel, Natural, Each

Part Number: STW-HCA32-5O2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 7/7/2025

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: Monday 7/7/2025

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: Monday 7/7/2025

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA3-53O2

Not Yet Reviewed

Estimated Ship Date: Aug 4, 2025 if ordered today

• 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: Aug 4, 2025 if ordered today

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HEADER COLLECTOR ADAPTER

Part Number: STW-HCA3-53-5O2

Not Yet Reviewed

Estimated Ship Date: Aug 5, 2025 if ordered today

• Drop Ship
• Special Order

Lead Pipe Kit: Factory Connect 2015-2025 Mustang GT

Part Number: STW-M15LDSFC

Not Yet Reviewed

Estimated Ship Date: Aug 4, 2025 if ordered today

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• Special Order

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA2-52O2

Not Yet Reviewed

Estimated Ship Date: Monday 7/7/2025

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA3-52-5O2

Not Yet Reviewed

Estimated Ship Date: Monday 7/7/2025

Lead Pipe Kit: Aftermarket Connect 2015-2025 Mustang GT

Part Number: STW-M15LDSLG

Not Yet Reviewed

Estimated Ship Date: Aug 4, 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

Not Yet Reviewed

Estimated Ship Date: Aug 4, 2025 if ordered today

• Special Order

HEADER COLLECTOR ADAPTER

Part Number: STW-HCA32-25O2

Not Yet Reviewed

Estimated Ship Date: Aug 4, 2025 if ordered today

• Special Order

Lead Pipe Kit: Performance Connect 2015-2025 Mustang GT

Part Number: STW-M15LDSPC

Not Yet Reviewed

Estimated Ship Date: Aug 4, 2025 if ordered today

• Free Shipping
• Special Order