1990 GMC G-Series Performance Headers

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    • (0 reviews)
      # 448341085
      GMC G3500 1990, Stainless Steel Turbo Exhaust Headers by Stainless Works®. Emissions: EPA compliant. Color: Silver. Header Coating: Uncoated. This superior product is made from high-grade stainless steel to ensure excellent quality...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $1,320.50
    • (0 reviews)
      # 448388957
      GMC G-Series With Power Steering 1990, Standard Duty Full Length Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". The standard-duty Hedman Hedders come from the factory with an...
      Made of High Quality MaterialsBuilt to Last
      $217.28 - $648.73
    • (0 reviews)
      # 496483128
      GMC G-Series 5.0L / 5.7L 1990, Block Hugger Exhaust Headers by Flowtech®. Emissions: EPA compliant. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Header Style: Short Tube. Flowtech Headers are the perfect...
      Tight fit block hugger design for popular hot rod and street rodsHeavy duty 16-gauge tubing for increased strength and durability
      $207.95 - $310.95
    • (0 reviews)
      # 496167377
      GMC G-Series 1990, Lakester™ Exhaust Headers by Flowtech®. Emissions: EPA compliant. Flowtech Headers are the perfect combination of quality and value. Flowtech is proud to announce the release of a complete line-up of Lakester...
      High flow, mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocityHeavy duty tubing and high quality welds for increased strength and durability
      $414.95 - $520.95
    • (0 reviews)
      # 496480095
      GMC G-Series 5.0L / 5.7L 1990, Ram Horn Exhaust Manifold by Flowtech®. Emissions: EPA compliant. Collector Outlet Diameter: 2.25". Flowtech exhaust manifolds are the perfect combination of quality and value. This Rams horn exhaust...
      Maximum engine clearance and maximum strengthSmooth transition, 1-5/8” diameter primaries are used for increased exhaust flow increasing performance and improving throttle response
      $207.95 - $310.95
    • (0 reviews)
      # 496185351
      GMC G-Series 1990, Stainless Steel Upright Exhaust Headers by Flowtech®. Emissions: EPA compliant. Flowtech Headers are the perfect combination of quality and value. Mandrel-bent tubes provide consistent tubing diameters for...
      Consistent tubing diameters for smooth flowIncreases the cylinder scavenging effect and improves engine breathing
      $219.95 - $339.95
    • (0 reviews)
      # 231095595
      GMC G-Series with Angle or Straight Plug Heads with Chevy Small Block Engine 1990, Black Painted Dirt Late Model Exhaust Headers by Dynatech®. Finish: Black Painted. Includes: Hardware, Gasket(s). These Long Tube Dirt Late Model...
      Gaskets and bolts includedMachine surfaced flanges - no leaks
      $309.99 - $319.99
    • (0 reviews)
      # 231095685
      GMC G-Series with Chevy Small Block Engine 1990, Black Painted Economy Crossover Exhaust Headers by Dynatech®. Finish: Black Painted. These Economy Crossover Headers are designed for use with a variety of engines and applications....
      Non-equal length design gives flat torque curve for slick tracksValve covers can be removed with header installed
      $299.99 - $319.99
    • (0 reviews)
      # 231095612
      GMC G-Series with Chevy Small Block Engine 1990, Black Painted Long Tube Pavement Late Model Exhaust Headers by Dynatech®. Collector Length: 7.50". Finish: Black Painted. Header Style: Long Tube. Includes: Hardware, Gasket(s)....
      35” Equal Length primaries for maximum Torque and HorsepowerValve covers are removable with headers installed
      $389.99 - $399.99
    • (0 reviews)
      # 231095493
      GMC G-Series with Chevy Big Block Engine 7.4L 1990, Dragster Stainless Steel Long Tube Exhaust Headers by Dynatech®. Header Style: Long Tube. Includes: Gaskets, Bolts/Studs. These Long Tube Dragster Headers are designed with looks...
      CNC laser cut flanges feature raised port location for increased powerUnique port gussets eliminate cracking caused by tire shake and muffler applications
      $739.99 - $1,399.99
    • (0 reviews)
      # 231095603
      GMC G-Series with Angle or Straight Plug Heads with Chevy Small Block Engine 1990, IMCA Modified Mild Steel Black Painted Exhaust Headers by Dynatech®. Finish: Black Painted. Includes: Gaskets, Bolts/Studs. These Small Block Chevy...
      Made of High Quality MaterialsGaskets and bolts included
      $269.99
    • (1 review)
      # 270943956
      GMC G-Series with Chevy Small Block Engine 1990, IMCA Southern Sport Mod Mild Steel Black Painted Exhaust Headers by Dynatech®. Collector Length: 7.75". Finish: Black Painted. Includes: Hardware, Gasket(s). These Small Block Chevy...
      Engineered for 602 Crate enginesGaskets and bolts included
      $229.99
    • (0 reviews)
      # 231095618
      GMC G-Series with Chevy Small Block Engine 1990, Mid Length Modified Exhaust Headers by Dynatech®. These Mid Length Modified Headers have been designed for use with straight or angle plug heads.
      Fits angle or straight plug heads.Gaskets and bolts included.
      $239.99 - $309.99
    • (0 reviews)
      # 231095586
      GMC G-Series with Chevy Small Block Engine 1990, Mild Steel 604 Crate Engine Dirt Late Model Exhaust Header Kit by Dynatech®. These 604 Crate Engine Dirt Late Model Headers have been designed specifically for use with 604 Crate...
      Delivers a huge boost in performance and an awesome soundRigorously dyno-tested to provide maximum horsepower and torque gains
      $379.99
    • (0 reviews)
      # 231095675
      GMC G-Series with Chevy Small Block Engine 1990, Mild Steel Stock Clip Exhaust Headers by Dynatech®. Collector Outlet Diameter: 3". These Small Block Chevy IMCA Southern Sport Mod Headers have been designed for use with angle or...
      Fits standard Chevy engines with angle or straight plug headsGaskets and bolts included
      $249.99 - $309.99
    • (1 review)
      # 270944041
      GMC G-Series with Chevy Small Block Engine 1990, Pro Cruiser Polished Street Rod Small Block Block Hugger Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.63". Collector Outlet Diameter: 2.5". Finish: Polished. Includes:...
      Improves Performance and Appearance100% stainless steel construction
      $299.99
    • (0 reviews)
      # 231095658
      GMC G-Series with Chevy Small Block Engine 1990, Stainless Steel 604 Crate Engine Dirt Late Model Exhaust Headers by Dynatech®. These Stainless Steel 604 Crate Engine Dirt Late Model Header Kits have been designed specifically for...
      Engineered for 604 Crate enginesGaskets and bolts included
      $924.99
    • (0 reviews)
      # 231095664
      GMC G-Series 1990, Stainless Steel Natural Weld-up Dragster Exhaust Header Kit by Dynatech®. Finish: Natural. Designed specifically for strut type front end cars and dragsters, this kit allows you to fabricate your own headers to...
      Tack-welded to make it easy to change or finish weldCNC laser-cut flanges, gaskets and bolts included
      $349.99
    • (0 reviews)
      # mpn358954139
      GMC G-Series 5.0L / 5.7L 1990, SlickFit Steel Natural Short Tube Exhaust Header by Advance Adapters®. Finish: Natural.
      $306.32
    • (0 reviews)
      # 270944019
      GMC G-Series with Small Block Chevy Engine 1990, Steel Raw Bucket Sprint Car Style Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3.5". Emissions: EPA compliant. Finish: Raw. Color:...
      Expertly crafted from premium materialsQuality design and workmanship
      $233.34
    • (0 reviews)
      # 231095746
      GMC G-Series 1990, Steel Tight Tuck Street Rod Exhaust Headers by Patriot Exhaust®. Emissions: EPA compliant. This superior Patriot EXhaust product is just for you. Carefully designed for maximum performance, is will more than just...
      Expertly crafted from premium materialsQuality design and workmanship
      $194.84 - $507.69
    • (0 reviews)
      # mpn358950110
      GMC G-Series with Big Block Chevy Engine 7.4L 1990, Tri-5 Steel Raw Mid-Length Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 2". Collector Outlet Diameter: 3.5". Emissions: EPA compliant. Finish: Raw. Color: Gray....
      Expertly crafted from premium materialsQuality design and workmanship
      $256.55
    • (0 reviews)
      # 231320721
      GMC G-Series With Chevy Small Block Engine 1990, Conventional Crossover Exhaust Headers by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $261.32 - $699.45
    • (0 reviews)
      # 87333428
      GMC G-Series With Chevy Small Block Engine 1990, DIRT Modified Exhaust Headers by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $261.32 - $301.92
    • (0 reviews)
      # 266643066
      GMC G-Series With Chevy Small Block Engine 1990, Demolition Derby Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.625". This top-notch product by Schoenfeld Headers is made to give that extra boost that every...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $144.21
    • (0 reviews)
      # 231320760
      GMC G-Series With Chevy Small Block Engine 1990, Dirt Late Model Exhaust Headers by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $261.32 - $720.76
    • (0 reviews)
      # mpn359116142
      GMC G-Series With Chevy Big Block Engine 7.4L 1990, Dyno Sprint Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 2.125". Collector Length: 13". Includes: Bolts and Gaskets. This top-notch product by Schoenfeld...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $340.88
    • (0 reviews)
      # 231320895
      GMC G-Series With Chevy Small Block Engine 1990, SBC Chassis Steel Exhaust Headers by Schoenfeld Headers®. Includes: Bolts, Studs, Gaskets. This top-notch product by Schoenfeld Headers is made to give that extra boost that every...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $167.23 - $212.01
    • (0 reviews)
      # 231320974
      GMC G-Series 1990, Sprint Car Exhaust Headers by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $240.41 - $658.26
    • (0 reviews)
      # 266652872
      GMC G-Series With Chevy Small Block Engine 1990, Steel 180 Crossover Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Includes: Bolts, Studs, Gaskets. This top-notch product by...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $271.78
    • (0 reviews)
      # 231320954
      GMC G-Series With Chevy Small Block Engine 1990, Stock Clip Steel Painted Exhaust Headers by Schoenfeld Headers®. Includes: Bolts, Studs, Gaskets. This top-notch product by Schoenfeld Headers is made to give that extra boost that...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $198.59 - $292.18
    • (0 reviews)
      # 231321023
      GMC G-Series With Chevy Small Block Engine 1990, Street Stock Steel Painted Exhaust Headers by Schoenfeld Headers®. Includes: Bolts, Studs, Gaskets. This top-notch product by Schoenfeld Headers is made to give that extra boost that...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $219.50 - $656.83
    • (0 reviews)
      # 87333532
      GMC G-Series With Chevy Small Block Engine 1990, Tri-Y Modified by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $599.71 - $702.28
    • (0 reviews)
      # 266643608
      GMC G-Series With Chevy Small Block Engine 1990, Zoomie Exhaust Headers by Schoenfeld Headers®. Standard Zoomie Grassburner. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $133.11
    • (0 reviews)
      # 231095642
      GMC G-Series with Chevy Small Block Engine / with LS-Based Engines 1990, MuscleMAXX Stainless Steel Natural Header Reducer Cone Kit by Dynatech®. Finish: Natural. Material: Stainless Steel. Includes: Bolts/Studs, Gaskets....
      Made of High Quality MaterialsBuilt to Last
      $139.99
    • (0 reviews)
      # mpn358582413
      GMC G-Series 5.0L / 5.7L 1990, Aluminum Header Flange Kit by Moroso®. Material: Aluminum. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is...
      High quality at an affordable priceExpertly made from premium materials
      $115.02
    • (0 reviews)
      # mpn358957196
      GMC G-Series 7.4L With Big Block Chevy Engine 1990, Exhaust Gasket Set by AFR®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind....
      Designed to meet the needs of racers or street enthusiastsMade using the latest in modern technology and advanced processes
      $25.87
    • (0 reviews)
      # 87333477
      GMC G-Series 1990, Header Flanges by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and meticulous...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $47.47 - $53.42
    • (0 reviews)
      # 91567234
      GMC G-Series 1990, Lakester Steel Weld-Up Exhaust Kit by Patriot Exhaust®. Material: Steel. Includes: Header Flanges, Collector Flanges, Block-Off Plates, Four Exhaust Hookup Flanges, Pre-Bent Header Tubes and Two Collector Cones....
      Perfect blend of style, quality, and dependabilityGive your rod a nostalgic look
      $223.78 - $261.29
    • (0 reviews)
      # mpn306537478
      GMC G-Series For Stock Or CNC Ported Heads 5.0L / 5.7L 1990, Premium Header Gasket Set by BBK®. These premium steel core graphite gaskets are flexible for a long lasting leak-proof seal even when cylinder head and header flange...
      Provides a long lasting, leak-proof sealFlexible graphite will conform to surface irregularities and won't stick to headers or cylinder head
      $39.99
    • (0 reviews)
      # mpn583856284
      GMC G-Series 5.0L / 5.7L 1990, Super Competition™ Exhaust Header Gasket by Hooker®. Hooker's precision-matched Super Competition header gaskets provide a sure fit and unmatched exhaust sealing. This OEM quality gasket is...
      Precision fit for improved sealingSteel core provides superior adhesion
      $13.21
    • (0 reviews)
      # 270943941
      GMC G-Series with Chevy Small Block Engine 1990, Aluminum Adapter Plate by Dynatech®. Material: Aluminum. Includes: Exhaust Bolts. These SBC to Stahl Aluminum Adapter Plate Kits allow you to use a larger tube size to maximize power.
      Delivers a huge boost in performance and an awesome soundRigorously dyno-tested to provide maximum horsepower and torque gains
      $159.99
    • (0 reviews)
      # 270943948
      GMC G-Series with Chevy Small Block Engine 1990, Fiber Exhaust Header Gasket by Dynatech®. Material: Fiber. Dynatech Fiber Race Gaskets are the premium gaskets demanded by many enthusiasts and racers alike. Specifically designed to...
      Made of High Quality MaterialsNo Leaks
      $15.99
    • (0 reviews)
      # 270943973
      GMC G-Series with Chevy Small Block Engine 1990, Spread Port Exhaust Gasket Set by Dynatech®. Dynatech Fiber Race Gaskets are the premium gaskets demanded by many enthusiasts and racers alike. Specifically designed to fit a wide...
      Made of High Quality MaterialsBuilt to Last
      $15.99
    • (0 reviews)
      # 270943978
      GMC G-Series with Chevy Small Block Engine 1990, Standard Port Exhaust Gasket Kit by Dynatech®. Dynatech Fiber Race Gaskets are the premium gaskets demanded by many enthusiasts and racers alike. Specifically designed to fit a wide...
      Made of High Quality MaterialsSold in Pairs
      $15.99
    • (0 reviews)
      # 118585670
      GMC G-Series 1990, Exhaust Header Gaskets by Spectre Performance®. Includes: 2 Gaskets. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $8.69 - $17.37
    • (0 reviews)
      # 89563228
      GMC G-Series 1990, Graph-Flex Header Flange Gaskets by Taylor Cable®. Taylor Cable makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust gas temperature...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $23.50
    • (0 reviews)
      # 89563238
      GMC G-Series 1990, Graph-Flex™ Exhaust Header Gaskets by Taylor Cable®. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel. This is a premium,...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $21.11 - $23.50
    • (0 reviews)
      # 231083209
      GMC G-Series 1990, HTR Collector Gaskets by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing the latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $16.53 - $18.40
    • (0 reviews)
      # 89563309
      GMC G-Series 1990, Seal-4-Good™ Aluminum Header Flange Gaskets by Taylor Cable®. Material: Aluminum. Taylor Cable makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors,...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $34.41
    • (0 reviews)
      # 89563317
      GMC G-Series 1990, Seal-4-Good™ Exhaust Header Gaskets by Taylor Cable®. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel. This is a premium,...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $34.41 - $37.85
    • (0 reviews)
      # 231083184
      GMC G-Series 1990, Seal-4-Good™ Header Flange Gaskets by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing the...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $34.41
    • (0 reviews)
      # 89563341
      GMC G-Series 1990, XX Carbon™ Exhaust Header Gaskets by Taylor Cable®. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel. This is a premium,...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $19.17 - $21.34
    • (0 reviews)
      # 89563368
      GMC G-Series 1990, XX Carbon™ Header Flange Gaskets by Taylor Cable®. Taylor Cable makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust gas temperature...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $21.34
    • (0 reviews)
      # 270943935
      GMC G-Series with Small Block Chevy Engine 1990, Spread Port Exhaust Gasket by Brodix®. The Brodix Exhaust Gaskets are specifically engineered to fit the precise dimensions of Brodix cylinder heads. When the competition is on the...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $15.59
    • (0 reviews)
      # 466230476
      GMC G-Series 7.4L 1990, MLS Exhaust Header Gasket by Cometic Gasket®.
      Made of High Quality MaterialsBuilt to Last
      $38.69
    • (0 reviews)
      # 245515994
      GMC G-Series 1990, Header Gasket by Howe Racing Enterprises®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...
      Built to match your exact requirementsHigh quality you can rely on
      $11.92
    • (0 reviews)
      # 231095711
      GMC G-Series 1990, Header Flange Kit by Patriot Exhaust®. Includes: Gaskets, Mounting Hardware. Patriot precision machined header flange kits are available for many popular engine families. Header flange kits come complete with...
      Precision machined flangeBuilt of High quality materials
      $46.41 - $60.28
    • (0 reviews)
      # 378622672
      GMC G-Series 5.0L / 5.7L 1990, Seal-4-Good™ Exhaust Header Gaskets by Percy's High Performance®. The Percy's Seal-4-Good Reusable Flange Gaskets are multi-layered and made from a special "Dead Soft" Aluminum, which conforms to...
      Built to match your exact requirementsHigh quality you can rely on
      $33.07
    • (0 reviews)
      # 378622675
      GMC G-Series 5.0L / 5.7L 1990, XX Carbon™ Exhaust Header Gaskets by Percy's High Performance®. These gaskets are designed to give the performance you expect at a price you can afford. Our XX Carbon gaskets are made of Taylor's...
      Built to match your exact requirementsHigh quality you can rely on
      $20.08





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