Flowtech Headers, Mufflers & More

Headers, Shorty, 1 5/8 in. Primary, 2.50 in. Collector, Steel, Pair

Part Number: BIG-91674FLT

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Headers, Long Tube, Steel, Silver Ceramic Coated, Chevy, GMC, SUV, Pickup, Small Block, Pair

Part Number: BIG-31500FLT

4.46 out of 5 stars ( 26 )

Estimated Ship Date: Today

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Headers, Long Tube, Steel, Painted, Ford, Mercury, Pair

Part Number: BIG-12102FLT

3.79 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Muffler, Warlock, 2 1/2 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Gray, Each

Part Number: BIG-50552FLT

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Exhaust Manifolds, Rams Horn, Cast Iron, Chrome, Chevy, Small Block, Pair

Part Number: BIG-11704-2FLT

5.0 out of 5 stars ( 1 )

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Headers, Shorty, Steel, Silver Ceramic Coated, Chevy, GMC, Pair

Part Number: BIG-31142FLT

4.5 out of 5 stars ( 12 )

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Headers, Shorty, Steel, Ceramic Coated, Cadillac, Chevy, GMC, SUV, Pickup, 4.8, 5.3L, Pair

Part Number: BIG-91836-1FLT

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Crossover Pipe, X-Pipe, Short, Steel, Aluminized, 3 in. Diameter, Universal, Fabrication Required, Each

Part Number: BIG-53621FLT

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Exhaust Manifolds, Rams Horn, Cast Iron, Natural, Chevy, Small Block, STREET ROD. Pair

Part Number: BIG-11704-RFLT

4.27 out of 5 stars ( 11 )

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Exhaust Gaskets, Header, P73 Ferroglass, Rectangle Port, Chrysler, Dodge, Plymouth, Small Block LA, Kit

Part Number: BIG-99361FLT

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Headers, Turbo, Up and Forward, 304 Stainless Steel, Natural, 1.875 in. Primary, 2.50 in. V-Band Collector, Chevrolet, Small Block Gen I, Pair

Part Number: BIG-11572FLT

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Headers, Upsweep, Stainless Steel, High-temperature Black Paint, Standard Flange, 2 1/4 in. Primary Tube O.D., Round Port, Chevrolet, Big Block, Pair

Part Number: BIG-11553FLT

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 22, 2025 if ordered today

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Crossover Pipe, X-Pipe, Short, Steel, Aluminized, 2.5 in. Diameter, Universal, Fabrication Required, Each

Part Number: BIG-53620FLT

4.92 out of 5 stars ( 13 )

Estimated Ship Date: Today

Headers, Long Tube, Steel, Ceramic Coated, Pontiac, 326-455, Pair

Part Number: BIG-31170FLT

3.5 out of 5 stars ( 12 )

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Headers, Block Hugger, Steel, Silver Ceramic Coated, Round Port, Street Rod, Chevy Small Block LS, Pair

Part Number: BIG-11706-1FLT

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 22, 2025 if ordered today

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Headers, Forward Facing Turbo, V-Band Flanges, 304 Stainless Steel, Natural, Ford, Modular V8, Coyote, Pair

Part Number: BIG-12152FLT

3.5 out of 5 stars ( 2 )

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Headers, Shorty, 304 Stainless Steel, Polished, 1 5/8 in. Primary, 3/8 in. Flange, Chevy, LS Swap, Pair

Part Number: BIG-11579FLT

2.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Headers, Turbo, Up and Forward, 304 Stainless Steel, Polished, 1.750 in. Primary, 2.50 in. V-Band Collector, Chevrolet, Small Block Gen I, Pair

Part Number: BIG-11570FLT

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 21, 2025 if ordered today

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Headers, Upright, 1 5/8 in. Primary, 3 in. Collector, Stainless Steel, Natural, Chevy, Small Block, Pair

Part Number: BIG-11545FLT

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Oct 22, 2025 if ordered today

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Headers, Shorty, Steel, Silver Ceramic Coated, 2.5 in. Collector, D-port, Ford, 5.4L, Pair

Part Number: BIG-91673-1FLT

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 21, 2025 if ordered today

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Crossover Pipe, Long X-Pipe, Steel, Aluminized, 3 in. Diameter, Universal, Fabrication Required, Kit

Part Number: BIG-53623FLT

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Header Extension, Afterburner Thrust Toobs, Bolt-On, 3 Bolt, 3.00 in. Inlet/Outlet, 12.00 in. Length, Pair

Part Number: BIG-10511FLT

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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

Part Number: BIG-10005FLT

4.23 out of 5 stars ( 13 )

Estimated Ship Date: Today

Headers, Lakester, Steel, Painted, D-port, Street Rod, Chevy Small Block, Pair

Part Number: BIG-11702FLT

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 20, 2025 if ordered today

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Muffler, Raptor Turbo, 2 1/2 in. Inlet/2 1/2 in. Outlet, Aluminized Steel, Each

Part Number: BIG-50052FLT

4.43 out of 5 stars ( 14 )

Estimated Ship Date: Today