Flowtech Headers

4.09 out of 5 stars 998 Customer Reviews

Flowtech headers are designed to provide optimum exhaust flow for increased horsepower, torque, fuel economy, and improved throttle response. Leak-tested for maximu

Flowtech headers are designed to provide optimum exhaust flow for increased horsepower, torque, fuel economy, and improved throttle response. Leak-tested for maximum performance, they feature the industry's best welds for durability and are carefully engineered for precise fit. Available for a wide range of applications, they're offered in block hugger, competition, fenderwell, lakester, long tube, mid-length, shorty, upright, and turbo styles. Varying with the application, Flowtech headers are constructed from sturdy and lightweight cold-rolled mild steel or stainless steel for increased strength and durability. All tubing is mandrel-bent to provide consistent tubing diameter for smooth flow and increased exhaust velocity. Extra-thick, machined header flanges provide a leak-free seal and maximum strength. For long-term rust and corrosion-resistance, available finishes include natural and polished stainless steel, high heat-resistant black paint, or a satin silver metallic ceramic thermal barrier coating. All mounting hardware and premium gaskets are included.

Important notes: Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Hooker recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Flowtech does not recommend the use of header wraps as this will void the warranty.

Showing In Stock Items. Show All 36 Items.

Results 1 - 25 of 32

Flowtech Headers 12540FLT

Headers, Long Tube, Steel, Painted, Ford, Big Block FE, Pair

Part Number: BIG-12540FLT

4.38 out of 5 stars ( 74 )

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Flowtech Headers 11500FLT

Headers, Long Tube, Steel, Painted, Chevy, GMC, Small Block, Pair

Part Number: BIG-11500FLT

4.51 out of 5 stars ( 79 )

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Flowtech Headers 32540FLT

Headers, Long Tube, Steel, Ceramic Coated, Ford, Big Block FE, Pair

Part Number: BIG-32540FLT

4.71 out of 5 stars ( 7 )

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Flowtech Headers 12542FLT

Headers, Long Tube, Steel, Painted, Ford, Pickup, 4WD, 352-390, FE, Pair

Part Number: BIG-12542FLT

4.18 out of 5 stars ( 61 )

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Flowtech Headers 31500FLT

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

Part Number: BIG-31500FLT

4.39 out of 5 stars ( 28 )

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Flowtech Headers 31110FLT

Headers, Long Tube, Steel, Ceramic Coated, Chevy, Small Block, Pair

Part Number: BIG-31110FLT

2.75 out of 5 stars ( 4 )

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Flowtech Headers 31130FLT

Headers, Long Tube, Steel, Ceramic Coated, Chevy, Big Block, Pair

Part Number: BIG-31130FLT

3.95 out of 5 stars ( 22 )

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Flowtech Headers 31100FLT

Headers, Long Tube, Steel, Ceramic Coated, Chevy, Car, Small Block, Pair

Part Number: BIG-31100FLT

3.63 out of 5 stars ( 16 )

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Flowtech Headers 11110FLT

Headers, Long Tube, Steel, Painted, Chevy, Small Block, Pair

Part Number: BIG-11110FLT

3.88 out of 5 stars ( 8 )

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Flowtech Headers 11100FLT

Headers, Long Tube, Steel, Painted, Chevy, Car, Small Block, Pair

Part Number: BIG-11100FLT

4.18 out of 5 stars ( 34 )

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Flowtech Headers 11510FLT

Headers, Long Tube, Steel, Painted, Chevy, K, V, Series Pickup, 250, 292, L6, Pair

Part Number: BIG-11510FLT

3.31 out of 5 stars ( 13 )

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Flowtech Headers 11573FLT

Headers, Turbo, Up and Forward, 304 Stainless Steel, Polished, 1.875 in. Primary, 2.500 in. V-Band Collector, Chevrolet, Small Block Gen I, Pair

Part Number: BIG-11573FLT

Not Yet Reviewed

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Flowtech Headers 12102FLT

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

Part Number: BIG-12102FLT

3.79 out of 5 stars ( 14 )

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Flowtech Headers 11106FLT

Headers, Long Tube, Steel, Painted, 1.625 in. x 3 in., Chevy, 283-400, Pair

Part Number: BIG-11106FLT

4.82 out of 5 stars ( 11 )

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Flowtech Headers 13100FLT

Headers, Long Tube, Steel, Painted, Dodge, Plymouth, Cars, 273, 318, 340, 360, Pair

Part Number: BIG-13100FLT

3.67 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Flowtech Headers 31106FLT

Headers, One-Piece Long Tube, 1 5/8 in. Primaries, Stock 3-Bolt Flange, 3 in. Collectors, Oval Ports, Steel, Ceramic Coated, Chevy, Small Block, Pair

Part Number: BIG-31106FLT

4.68 out of 5 stars ( 44 )

Estimated Ship Date: Today

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Flowtech Headers 12120FLT

Headers, Tri-Y, Steel, Polished, 1 1/2 in. Primary Tube O.D., 2.500 in. Collector Diameter, Angle/Straight Plug, Ford, 4.3L, 4.7L, 5.0L, Pair

Part Number: BIG-12120FLT

5.0 out of 5 stars ( 1 )

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Flowtech Headers 31170FLT

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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Flowtech Headers 11130FLT

Headers, Long Tube, Steel, Painted, Chevy, Big Block, Pair

Part Number: BIG-11130FLT

4.67 out of 5 stars ( 3 )

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Flowtech Headers 11551FLT

Headers, Upsweep 4x4, Stainless Steel, Natural, 2 1/4 in. Primary, Chevy, Big Block, Pair

Part Number: BIG-11551FLT

5.0 out of 5 stars ( 2 )

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Flowtech Headers 11569FLT

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

Part Number: BIG-11569FLT

3.5 out of 5 stars ( 2 )

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Flowtech Headers 12103FLT

Headers, Shorty, Steel, Painted, Ford, Mercury, Pair

Part Number: BIG-12103FLT

2.0 out of 5 stars ( 3 )

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Hedman Street Headers 88650

4 out of 5 stars ( 33 )

Estimated Ship Date: Today

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Flowtech Headers 31132FLT

Headers, Long Tube, Steel, Ceramic Coated, Chevy, Big Block, Pair

Part Number: BIG-31132FLT

4.25 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Flowtech Headers 32103FLT

Headers, Shorty, Steel, Silver Ceramic Coated, Ford, Mercury, Pair

Part Number: BIG-32103FLT

3.22 out of 5 stars ( 9 )

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Hedman Street Headers 88650

4 out of 5 stars ( 33 )

Estimated Ship Date: Today

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Flowtech Headers 11170FLT

Headers, Long Tube, Steel, Painted, Pontiac, 326-455, Pair

Part Number: BIG-11170FLT

3.78 out of 5 stars ( 9 )

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