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Flowtech Performance Exhaust was founded in 1994, by exhaust market expert Gary Biggs, with the mission of delivering high quality performance exhaust at a great value. The mission was successful and in less than two decades Flowtech became the leader in value priced exhaust systems.

Flowtech cornered its place in the market with aggressive and memorable product names such as Raptor™, Terminator™, Afterburner™ and Warlock™. Flowtech even revived some names from back in the day like Purple Hornies™.

Flowtech made its mark with simple yet effective improvements like slotted port flanges giving added wiggle room during header installation. They dimpled their tubes at the port to make more room for the header bolts and they parallel ground their flanges to assure a tight seal. Flowtech innovations include their unique Afterburner headers which separated the odd firing cylinders with a velocity tube to improve scavenging. Their patented Warlock bypass muffler won the SEMA best new product award for its revolutionary open or closed design in 1996.

When Flowtech became part of Holley Performance Products in 1999, the company continued to focus on value, with an emphasis on late model cars and trucks. Headers and exhaust systems were developed for Mustangs, Camaros, and all types of full size trucks - including diesels. The same innovation continues today with the addition of universal X-pipe kits and X-pipe kits with built in cut-outs. Continuous product updates and improvements to manufacturing processes will keep Flowtech the leader in value priced exhaust systems. We hope you enjoy your Flowtech product as much as we enjoy building it!

1-36 of 217 results for FlowTech : All Productsgo

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FlowTech Upright Headers 11545FLT
Model: 4005920
Condition: NEW
Flowtech Headers are the perfect combination of quality and value. These Small Block Chevy Upright headers available in 1-5/8" and 1-3/4" tube diameters are ideal for even big cubic inch Small Block Chevy engines. They feature a merged…
$571.99 ea $528.31
7.6%
FlowTech 1963-1974 Chevrolet Corvette Long Tube Header, Ceramic Coated 31106FLT
Model: 1030417
Condition: NEW
Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting…
FlowTech Long Tube Header, Black Painted -1-5/8 In. X 3.0 In. 11100FLT
Model: 4005863
Condition: NEW
Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 3/8" flanges with sealing rings for a leak-free seal. All mounting…
FlowTech Decal Sheet MP1001FLT
Model: 4952774
Condition: NEW
This Flowtech decal sheet is top quality and stick easily to most surfaces. 4.5" x 3.25" Flowtech decal sheet contains 2 decals. These stickers are a must for any toolbox or affixing to your window to show off your Flowtech exhaust…
FlowTech LS Swap Exhaust Manifolds, Natural Cast Finish 11730FLT
Model: 4006350
Condition: NEW
These Flowtech cast iron exhaust manifolds have a 2.25-inch outlet, natural cast finish, and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget-friendly…
FlowTech Header Gaskets, Ferroglass Non-Asbestos, 273-318 Chrysler Small Block LA 1966-92 99361FLT
Model: 4006326
Condition: NEW
Replacement Header Gaskets for Chrysler 273-360 Small Block headers. Kit consists of (2) Header flange gaskets and (2) 3" collector gaskets Features:Engineered for a precise, easy fitManufactured of P73 Ferroglass non-asbestos facing…
FlowTech Header Gaskets, Ferroglass Non-Asbestos, 396-502 Chevrolet Big Block Mark IV 1965-90 99162FLT
Model: 4006320
Condition: NEW
Replacement Header Gaskets for 396-454 Big Block Chevy headers. Kit consists of (2) Header flange gaskets and (2) 3.5" collector gaskets and (2) 3" collector gaskets Features:Engineered for a precise, easy fitManufactured of P73 Ferroglass…
FlowTech Header Gaskets, Ferroglass Non-Asbestos, 262-400 Chevrolet Small Block Gen I 1955-91 99161FLT
Model: 4006319
Condition: NEW
Replacement Header Gaskets for 283-400 Small Block Chevy full length headers. Kit consists of (2) Header flange gaskets and (2) 3" collector gaskets and (2) 2.5" collector gaskets Features:Engineered for a precise, easy fitManufactured of…
FlowTech Shorty Headers, Ceramic Coated 91733-1FLT
Model: 4006273
Condition: NEW
Flowtech Headers are the perfect combination of quality and value. These shorty headers fit the popular 2005-2011 Toyota Tacoma and 2007-2009 Toyota FJ Cruiser V6-4.0L 2WD/4WD. Features:Mandrel-bent tubes provide consistent tubing…
FlowTech 2011-2017 Ford F-150 Shorty Headers, Black Painted 91674FLT
Model: 4006270
Condition: NEW
Flowtech headers are the perfect combination of performance and value. Flowtech shorty headers are precision engineered using mandrel bent tubing, formed collectors and 3/8" flanges for a leak-free seal. Header gaskets are included for a…
FlowTech 1986-1993 Ford Mustang Starter Tube 53609FLT
Model: 4006228
Condition: NEW
These Flowtech Pro-Stang Starter Tubes will allow you to attach larger 2.5-inch mufflers to a 2.5-inch H-Pipe or X-Pipe on your 1986-1993 Mustang. Features:Aluminized TubingDesigned Specificaly for 5.0L MustangsLarge 2.5-inch Diameter…
FlowTech Small Block Chevy Turbo Headers, Polished Finish 11573FLT
Model: 4005935
Condition: NEW
Flowtech Turbo headers are the perfect combination of quality and value. These SBC (Small Block Chevy) Turbo headers are available in 1-3/4" and 1-7/8" mandrel bent tube diameters and a 2.50" collectors with merge spears for increased…
FlowTech Long Tube Header, Black Paint 11130FLT
Model: 4005874
Condition: NEW
Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting…
FlowTech Reducer 10004FLT
Model: 4005843
Condition: NEW
FLOWTECH understands that when you purchase a set of headers, a muffler, or even an entire exhaust system, you want to know that you're getting everything you need to complete the installation. That's why we pride ourselves on our…
FlowTech Banner 36-373
Model: 4952773
Condition: NEW
Punish the Pavement!Hang this vinyl Flowtech banner in your shop, garage, or man cave and let everyone know who you turn too as your go-to performance exhaust brand. This banner is constructed of dye cut vinyl measuring 30" tall x 90" wide…
FlowTech Upright Headers 11587FLT
Model: 4006355
Condition: NEW
These Flowtech upright derby style headers fit the 2.8L, 3.1L and 3.4L GM V6 engines with both round port or D-port style exhaust ports. 1-1/2 in. and 1-5/8 in. mandrel bent primary tubes provide consistent tubing diameters for smooth flow…
FlowTech Upright Headers 11586FLT
Model: 4006354
Condition: NEW
These Flowtech upright derby style headers fit the 2.8L, 3.1L and 3.4L GM V6 engines with both round port or D-port style exhaust ports. 1-1/2 in. and 1-5/8 in. mandrel bent primary tubes provide consistent tubing diameters for smooth flow…
FlowTech Upright Headers 11585FLT
Model: 4006353
Condition: NEW
These Flowtech upright derby style headers fit the 2.8L, 3.1L and 3.4L GM V6 engines with both round port or D-port style exhaust ports. 1-1/2 in. and 1-5/8 in. mandrel bent primary tubes provide consistent tubing diameters for smooth flow…
FlowTech LS Swap Exhaust Manifolds, Black Ceramic Finish 31730-3FLT
Model: 4006352
Condition: NEW
These Flowtech cast iron exhaust manifolds have a 2.25 inch outlet, natural cast finish and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget friendly…
FlowTech LS Swap Exhaust Manifolds, Silver Ceramic Finish 31730-1FLT
Model: 4006351
Condition: NEW
These Flowtech cast iron exhaust manifolds have a 2.25 inch outlet, natural cast finish and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget friendly…
FlowTech Header Gaskets, Ferroglass Non-Asbestos, 330-455 Oldsmobile V8 1964-80 99460FLT
Model: 4006327
Condition: NEW
Replacement Header Gaskets for Oldsmobile 260-455 headers. Kit consists of (2) Header flange gaskets and (2) 3" collector gaskets Features:Engineered for a precise, easy fitManufactured of P73 Ferroglass non-asbestos facing material for…
FlowTech Header Gaskets, Ferroglass Non-Asbestos, 302-351W Ford Small Block Windsor 1987-95 99263FLT
Model: 4006325
Condition: NEW
Replacement Header Gaskets for Ford 302-351W Small Block headers. Kit consists of (2) Header flange gaskets and (2) 3" collector gaskets and (2) 2.5" collector gaskets Features:Engineered for a precise, easy fitManufactured of P73…
FlowTech Header Gaskets, Ferroglass Non-Asbestos, 406-427 Ford Big Block FE 1962-68, 16-Bolt 99261FLT
Model: 4006324
Condition: NEW
Replacement Header Gaskets for Ford FE Truck headers. Kit consists of (2) Header flange gaskets and (2) 3" collector gaskets and (2) 2.5" collector gaskets Features:Engineered for a precise, easy fitManufactured of P73 Ferroglass…
FlowTech Header Gaskets, Ferroglass Non-Asbestos, 262-400 Chevrolet Small Block Gen I 1955-91 99160FLT
Model: 4006318
Condition: NEW
Replacement Header Gaskets for 262-400 Small Block Chevy/EO/Afterburner headers. Kit consists of (2) Header flange gaskets and (2) 3" collector gaskets Features:Engineered for a precise, easy fitManufactured of P73 Ferroglass non-asbestos…
FlowTech Header Gaskets, Aluminum-Layered, 396-454 Chevrolet Big Block Mark IV 1965-90 99153FLT
Model: 4006317
Condition: NEW
FLOWTECH REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology. Constructed of separate layers of "Dead Soft" aluminum, REAL SEALS provide a do-it-once solution that will not burn or blow…
FlowTech Header Gaskets, Aluminum-Layered, 262-400 Chevrolet Small Block Gen I 1955-91 99150FLT
Model: 4006316
Condition: NEW
FLOWTECH REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology. Constructed of separate layers of "Dead Soft" aluminum, REAL SEALS provide a do-it-once solution that will not burn or blow…
FlowTech Header Gaskets, Aluminum-Layered, 262-400 Chevrolet Small Block Gen I 1955-91 99150AFLT
Model: 4006315
Condition: NEW
FLOWTECH REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology. Constructed of separate layers of "Dead Soft" aluminum, REAL SEALS provide a do-it-once solution that will not burn or blow…
FlowTech 2007-2011 Jeep Wrangler Shorty Headers, Black Painted 92004FLT
Model: 4006310
Condition: NEW
Flowtech Headers are the perfect combination of quality and value. This shorty header fits the popular 2007-2011 Jeep Wrangler JK V6-3.8L 2WD/4WD. These headers increase exhaust flow producing more usable power and improved throttle…
FlowTech 2007-2011 Jeep Wrangler Shorty Headers, Ceramic Coated 92004-1FLT
Model: 4006309
Condition: NEW
Flowtech Headers are the perfect combination of quality and value. This shorty header fits the popular 2007-2011 Jeep Wrangler JK V6-3.8L 2WD/4WD. These headers increase exhaust flow producing more usable power and improved throttle…
FlowTech 2000-2006 Jeep Wrangler Shorty Header, Black Painted 92003FLT
Model: 4006308
Condition: NEW
Flowtech Headers are the perfect combination of quality and value. This shorty header fits the popular 2000-06 Jeep Wrangler TJ 4WD, 2000-2001 Cherokee, and 1999-2004 Grand Cherokee with the 4.0L L6 and bolts up to the factory…
FlowTech Shorty Header, Black Painted 92002FLT
Model: 4006306
Condition: NEW
Flowtech Headers are the perfect combination of quality and value. This shorty header fits the popular 1991-1999 Jeep Wrangler YJ/TJ 4WD I6-4.0L and bolts up to the factory exhaust. Features:Tri-Y design for a broad torque curve and…
FlowTech Shorty Headers, Black Painted 91950FLT
Model: 4006302
Condition: NEW
Flowtech Headers are the perfect combination of quality and value. These shorty style headers fit the popular 2009-2023* (*2019-2023 Classic models only) Dodge Ram 1500 HEMI V8-5.7L 2WD/4WD. Features:Mandrel-bent tubes provide consistent…
FlowTech Shorty Headers, Ceramic Coated 91950-1FLT
Model: 4006301
Condition: NEW
Flowtech Headers are the perfect combination of quality and value. These shorty style headers fit the popular 2009-2023* (*2019-2023 Classic Only) Dodge Ram 1500 HEMI V8-5.7L 2WD/4WD. Features:Mandrel-bent tubes provide consistent tubing…
FlowTech 2004-2005 Dodge Ram 1500 Shorty Headers, Black Painted 91946FLT
Model: 4006298
Condition: NEW
FLOWTECH's shorty headers are just the ticket for those who want the best of both worlds - top performance and excellent value. All our Shorty Headers install easily to the factory exhaust system, and offer maximum horsepower gains plus…
FlowTech 2004-2005 Dodge Ram 1500 Shorty Headers, Ceramic Coated 91946-1FLT
Model: 4006297
Condition: NEW
FLOWTECH's shorty headers are just the ticket for those who want the best of both worlds - top performance and excellent value. All our Shorty Headers install easily to the factory exhaust system, and offer maximum horsepower gains plus…
FlowTech Shorty Headers, Black Painted 91945FLT
Model: 4006296
Condition: NEW
FLOWTECH's emissions-friendly headers are just the ticket for those who want the best of both worlds - top performance and a clean machine. All Shorty Smog Headers bolt on quickly and easily to the factory exhaust system, retaining all…
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