Flowtech Headers

4.08 out of 5 stars 981 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.

Results 1 - 12 of 12

Flowtech Headers 12147FLT

Headers, Shorty, Stainless Steel, Black Painted, 1 3/4 in. Primary, Ford, Mustang, 5.0L, Pair,

Part Number: BIG-12147FLT

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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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 12500FLT

Headers, Long Tube, One Piece, 1.5 in. Primary, 3.0 in. Collector, 18 Gauge Steel, 3 Bolt Collector Flange, Painted Temporary Black, Ford, 302, Pair

Part Number: BIG-12500FLT

4.0 out of 5 stars ( 18 )

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: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Flowtech Headers 12138FLT

Headers, Shorty, Stainless Steel, Polished, 1 3/4 in. Primary, Ford, Small Block Windsor, Pair

Part Number: BIG-12138FLT

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

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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: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

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Hedman Street Headers 88650

4 out of 5 stars ( 32 )

Estimated Ship Date: Today

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Flowtech Headers 91674FLT

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

Part Number: BIG-91674FLT

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Flowtech Headers 12119FLT

Headers, Tri-Y, Steel, Temporary non-high Temperature Paint, Pair

Part Number: BIG-12119FLT

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Flowtech Headers 32138FLT

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

Part Number: BIG-32138FLT

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Flowtech Headers 12100FLT

Headers, Long Tube, Steel, Painted, Ford, Mercury, Car, Small Block, Pair

Part Number: BIG-12100FLT

4.8 out of 5 stars ( 5 )

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 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Flowtech Headers 12000FLT

Headers, Block Hugger, Painted, Small Block, Ford, 289-351W, Universal Street Rod, 1.625 in.x 2.500 in., Pair

Part Number: BIG-12000FLT

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

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