1989 GMC G-Series Performance Headers

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    • Dorman® - Cast Iron Natural Exhaust Manifold
      (0 reviews)
      # 231095568
      GMC G-Series 1989, Cast Iron Exhaust Manifold by Dorman®. Color: Natural. Header Coating: Uncoated. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $69.59 - $116.95
    • Hedman Hedders® - Standard Duty Mild Steel Long Tube Exhaust Headers
      (0 reviews)
      # 1154709891
      GMC G-Series with Power Steering with A.I.R. System 1989, Standard Duty Mild Steel Long Tube Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Header Style: Long Tube. The standard-duty...
      Made of High Quality MaterialsBuilt to Last
      $382.44 - $658.56
    • Hedman Hedders® - Standard Duty Mild Steel Long Tube Racing Exhaust Headers
      (0 reviews)
      # 448388957
      GMC G-Series without Smog Injection or Injection Heads with Power Steering 1989, Standard Duty Mild Steel Long Tube Racing Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Header Style:...
      Made from High Quality MaterialsBuilt to Last
      $267.04 - $536.85
    • Advance Adapters® - Exhaust Headers
      (0 reviews)
      # mpn4564004617
      GMC G-Series 5.0L / 5.7L 1989, Exhaust Headers by Advance Adapters®. 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...
      High quality at an affordable priceExpertly made from premium materials
      $241.46
    • Dynatech® - Black Painted Dirt Late Model Exhaust Headers
      (0 reviews)
      # 231095595
      GMC G-Series with Angle or Straight Plug Heads with Chevy Small Block Engine 1989, Dirt Late Model Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.75"-1.875". Collector Outlet Diameter: 3.5". Color: Black. Header Coating:...
      Gaskets and bolts includedMachine surfaced flanges - no leaks
      $319.99
    • Dynatech® - Black Painted Long Tube Pavement Late Model Exhaust Headers
      (0 reviews)
      # 231095612
      GMC G-Series with Chevy Small Block Engine 1989, Long Tube Pavement Late Model Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.75"-1.875". Collector Outlet Diameter: 3.5". Collector Length: 7.50". Color: Black. Header Coating:...
      35” Equal Length primaries for maximum Torque and HorsepowerValve covers are removable with headers installed
      $399.99
    • Dynatech® - Mild Steel 604 Crate Engine Dirt Late Model Exhaust Header Kit
      (0 reviews)
      # 231095586
      GMC G-Series with Chevy Small Block Engine 1989, Mild Steel 604 Crate Engine Dirt Late Model Exhaust Header Kit by Dynatech®. Primary Tubing Diameter: 1.625"-1.75". Collector Outlet Diameter: 3". These 604 Crate Engine Dirt Late Model...
      Delivers a huge boost in performance and an awesome soundRigorously dyno-tested to provide maximum horsepower and torque gains
      $379.99 - $423.99
    • Dynatech® - Pro Cruiser Polished Street Rod Small Block Block Hugger Exhaust Headers
      (1 review)
      # 270944041
      GMC G-Series with Chevy Small Block Engine 1989, Pro Cruiser Street Rod Small Block Block Hugger Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.63". Collector Outlet Diameter: 2.5". Comes standard with a Full One Year...
      Improves Performance and Appearance100% stainless steel construction
      $299.99
    • Dynatech® - Stainless Steel 604 Crate Engine Dirt Late Model Exhaust Headers
      (0 reviews)
      # 231095658
      GMC G-Series with Chevy Small Block Engine 1989, Stainless Steel 604 Crate Engine Dirt Late Model Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.625"-1.75". Collector Outlet Diameter: 3". These Stainless Steel 604 Crate Engine...
      Engineered for 604 Crate enginesGaskets and bolts included
      $924.99 - $1,062.49
    • Dynatech® - Stainless Steel Long Tube Exhaust Headers
      (0 reviews)
      # 231095493
      GMC G-Series 7.4L with Chevy Big Block Engine 1989, Stainless Steel Long Tube Exhaust Headers by Dynatech®. Header Style: Long Tube. These Long Tube Dragster Headers are designed with looks and performance in mind.
      CNC laser cut flanges feature raised port location for increased powerUnique port gussets eliminate cracking caused by tire shake and muffler applications
      $739.99 - $1,544.99
    • Dynatech® - Stainless Steel Natural Weld-up Dragster Exhaust Header Kit
      (0 reviews)
      # 231095664
      GMC G-Series 1989, Stainless Steel Weld-up Dragster Exhaust Header Kit by Dynatech®. Color: Natural. Header Coating: Uncoated. Designed specifically for strut type front end cars and dragsters, this kit allows you to fabricate your own...
      Tack-welded to make it easy to change or finish weldCNC laser-cut flanges, gaskets and bolts included
      $399.99 - $452.99
    • Flowtech® - 409 SS Upright Exhaust Headers
      (0 reviews)
      # 496449112
      GMC G-Series 7.4L 1989, 409 SS Upright Exhaust Headers by Flowtech®. Primary Tubing Diameter: 2.25". Collector Outlet Diameter: 4". Flowtech Headers are the perfect combination of quality and value. Mandrel-bent tubes provide consistent...
      Consistent tubing diameters for smooth flowIncreases the cylinder scavenging effect and improves engine breathing
      $316.95 - $359.95
    • Hooker® - Competition™ Mild Steel Black Painted Long Tube Exhaust Headers
      (0 reviews)
      # mpn4564008678
      GMC G-Series Cutaway Van 5.7L 1989, Competition™ Mild Steel Long Tube Exhaust Headers by Hooker®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Collector Length: 8". Color: Black. Header Coating: Painted. Header...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $265.95
    • Patriot Exhaust® - Chrome Street Rod Sprint Exhaust Headers
      (0 reviews)
      # mpn4564003297
      GMC G-Series 5.0L / 5.7L 1989, Street Rod Sprint Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3.5". Color: Chrome. Header Coating: Chrome. This superior Patriot EXhaust product is just...
      Expertly crafted from premium materialsQuality design and workmanship
      $419.91
    • Patriot Exhaust® - Lakester Steel Weld-Up Exhaust Kit
      (0 reviews)
      # 91567234
      GMC G-Series 1989, Lakester Steel Weld-Up Exhaust Kit by Patriot Exhaust®. Material: Steel. Give your rod a nostalgic look with our Lakester style weld-up kits. Fits T-Buckets, Model A's, 32-34 Hi-Boys and most other fenderless street...
      Perfect blend of style, quality, and dependabilityGive your rod a nostalgic look
      $210.00 - $231.40
    • Patriot Exhaust® - Race Style Exhaust Header Weld-Up Kit
      (0 reviews)
      # 378638800
      GMC G3500 1989, Race Style Exhaust Header Weld-Up Kit by Patriot Exhaust®. These kits work great for racers who need to build custom headers when a specific fit header is not available. This superior Patriot EXhaust product is just for...
      Expertly crafted from premium materialsQuality design and workmanship
      $298.57 - $435.16
    • Patriot Exhaust® - Roadster Exhaust Headers
      (0 reviews)
      # 378622663
      GMC G-Series 5.0L / 5.7L 1989, Roadster Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3.5". This superior Patriot EXhaust product is just for you. Carefully designed for maximum...
      Expertly crafted from premium materialsQuality design and workmanship
      +1
      $249.24 - $554.61
    • Patriot Exhaust® - Steel Long Tube Exhaust Headers
      (0 reviews)
      # 378638915
      GMC G1500 / G2500 / G3500 1989, Steel Long Tube Exhaust Headers by Patriot Exhaust®. Collector Outlet Diameter: 3". Header Style: Long Tube. This superior Patriot EXhaust product is just for you. Carefully designed for maximum...
      Expertly crafted from premium materialsQuality design and workmanship
      $297.33 - $690.52
    • Patriot Exhaust® - Steel Tight Tuck Street Rod Exhaust Headers
      (0 reviews)
      # 231095746
      GMC G-Series 1989, Steel Tight Tuck Street Rod Exhaust Headers by Patriot Exhaust®. This superior Patriot Exhaust product is just for you. Carefully designed for maximum performance, is will more than just meet your needs and...
      Expertly crafted from premium materialsQuality design and workmanship
      $183.10 - $566.93
    • Patriot Exhaust® - Tri-5 Steel Raw Mid-Length Tube Exhaust Headers
      (0 reviews)
      # mpn4564004043
      GMC G-Series 7.4L with Big Block Chevy Engine 1989, Tri-5 Steel Mid-Length Tube Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 2". Collector Outlet Diameter: 3.5". Color: Gray. Header Coating: Uncoated. Header Style:...
      Expertly crafted from premium materialsQuality design and workmanship
      $261.54
    • Schoenfeld Headers® - Conventional Crossover Exhaust Headers
      (0 reviews)
      # 231320721
      GMC G-Series with Chevy Small Block Engine 1989, 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 product is...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $270.72 - $686.52
    • Schoenfeld Headers® - DIRT Modified Exhaust Headers
      (0 reviews)
      # 87333428
      GMC G-Series with Chevy Small Block Engine 1989, 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 designed...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $268.79 - $306.52
    • Schoenfeld Headers® - Demolition Derby Exhaust Headers
      (0 reviews)
      # 266643066
      GMC G-Series with Chevy Small Block Engine 1989, 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 driver...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $148.46
    • Schoenfeld Headers® - Dirt Late Model Exhaust Headers
      (0 reviews)
      # 231320760
      GMC G-Series with Chevy Small Block Engine 1989, 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
      $291.09 - $707.57
    • Schoenfeld Headers® - Dyno Sprint Exhaust Headers
      (0 reviews)
      # mpn4564006037
      GMC G-Series 7.4L with Chevy Big Block Engine 1989, Dyno Sprint Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 2.125". Collector Length: 13". This top-notch product by Schoenfeld Headers is made to give that extra...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $345.92
    • Schoenfeld Headers® - H Style Conventional Crossover Headers
      (0 reviews)
      # 466734134
      GMC G-Series with Chevy Small Block Engine 1989, H Style Conventional Crossover 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
      $284.10 - $315.25
    • Schoenfeld Headers® - SBC Chassis Steel Exhaust Headers
      (0 reviews)
      # 231320895
      GMC G-Series with Chevy Small Block Engine 1989, SBC Chassis Steel 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
      $182.89 - $218.25
    • Schoenfeld Headers® - Sprint Car Exhaust Headers
      (0 reviews)
      # 231320974
      GMC G-Series 1989, 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 meticulous...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $250.87 - $702.19
    • Schoenfeld Headers® - Steel Painted 180 Crossover Exhaust Headers
      (0 reviews)
      # 266652872
      GMC G-Series with Chevy Small Block Engine 1989, Steel 180 Crossover Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Header Coating: Painted. This top-notch product by Schoenfeld...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $296.15
    • Schoenfeld Headers® - Stock Clip Steel Painted Exhaust Headers
      (0 reviews)
      # 231320954
      GMC G-Series with Chevy Small Block Engine 1989, Stock Clip Steel Exhaust Headers by Schoenfeld Headers®. Header Coating: Painted. 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
      $210.77 - $301.56
    • Schoenfeld Headers® - Tri-Y Modified Exhaust Headers
      (0 reviews)
      # 87333532
      GMC G-Series with Chevy Small Block Engine 1989, Tri-Y 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
      $663.01 - $689.43
    • Schoenfeld Headers® - Zoomie Exhaust Headers
      (0 reviews)
      # 266643608
      GMC G-Series with Chevy Small Block Engine 1989, 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 appreciates....
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $137.04
    • Dynatech® - MuscleMAXX Stainless Steel Natural Header Reducer Cone Kit
      (0 reviews)
      # 231095642
      GMC G-Series with Chevy Small Block Engine / with LS-Based Engines 1989, MuscleMAXX Stainless Steel Header Reducer Cone Kit by Dynatech®. Material: Stainless Steel. Dynatech® reducer cone kits for MuscleMaxx headers. Reducers bolt to...
      Made of High Quality MaterialsBuilt to Last
      $139.99
    • Moroso® - Aluminum Header Flange Kit
      (0 reviews)
      # mpn358582413
      GMC G-Series 5.0L / 5.7L 1989, 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
      $120.28
    • Schoenfeld Headers® - Header Flanges
      (0 reviews)
      # 87333477
      GMC G-Series 1989, 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 attention to...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $48.87 - $61.79
    • AFR® - Steel Core Laminate Exhaust Gasket Set
      (0 reviews)
      # mpn4544838197
      GMC G-Series 7.4L with Big Block Chevy Engine 1989, Steel Core Laminate Exhaust Gasket Set by AFR®. Material: Steel Core Laminate. This product is made of high-quality materials to serve you for years to come. Designed using...
      Designed to meet the needs of racers or street enthusiastsMade using the latest in modern technology and advanced processes
      $25.95
    • Apex Auto® - Exhaust Manifold Gasket Set
      (0 reviews)
      # 630375670
      GMC G-Series 1989, Exhaust Manifold Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...
      Quick accurate delivery with excellent fill-rateExcellent inventory availability
      $3.45 - $8.88
    • DNJ Engine Components® - Exhaust Manifold Gasket Set
      (0 reviews)
      # 231095573
      GMC G-Series 1989, Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to provide...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $4.24 - $10.57
    • BBK® - Premium Header Gasket Set
      (0 reviews)
      # mpn306537478
      GMC G-Series 5.0L / 5.7L For Stock Or CNC Ported Heads 1989, 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 surfaces...
      Provides a long lasting, leak-proof sealFlexible graphite will conform to surface irregularities and won't stick to headers or cylinder head
      $39.99
    • Brodix® - Spread Port Exhaust Header Gasket
      (0 reviews)
      # 270943935
      GMC G-Series with Small Block Chevy Engine 1989, Spread Port Exhaust Header 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
      $16.04
    • Cometic Gasket® - Multi-Layer Steel Exhaust Header Gaskets
      (0 reviews)
      # 1610552474
      GMC G-Series 7.4L 1989, Multi-Layer Steel Exhaust Header Gaskets by Cometic Gasket®. Material: Multi-Layer Steel. Exhaust Gaskets are designed for extreme cylinder pressures. MLS Exhaust Manifold Gaskets maintain a torque set and resist...
      Made of High Quality MaterialsBuilt to Last
      $39.85
    • Cometic Gasket® - Multi-Layer Steel Exhaust Manifold Gasket
      (0 reviews)
      # mpn4478724383
      GMC G3500 7.4L 1989, Multi-Layer Steel Exhaust Manifold Gasket by Cometic Gasket®. Material: Multi-Layer Steel. This state-of-the-art exhaust product combines advanced materials with the most current manufacturing processes to provide...
      Backed by unsurpassed quality and solid workmanshipWill deliver exceptional performance you expect to get
      $39.85
    • Dynatech® - Aluminum Adapter Plate
      (0 reviews)
      # 270943941
      GMC G-Series with Chevy Small Block Engine 1989, Aluminum Adapter Plate by Dynatech®. Material: Aluminum. 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
      $164.99
    • Dynatech® - Fiber Exhaust Header Gasket
      (0 reviews)
      # 270943948
      GMC G-Series with Chevy Small Block Engine 1989, 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 fit...
      Made of High Quality MaterialsNo Leaks
      $15.99
    • Dynatech® - Spread Port Exhaust Header Gasket Kit
      (0 reviews)
      # 270943973
      GMC G-Series with Chevy Small Block Engine 1989, Spread Port Exhaust Header 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 MaterialsBuilt to Last
      $15.99
    • Dynatech® - Standard Port Exhaust Header Gasket Kit
      (0 reviews)
      # 270943978
      GMC G-Series with Chevy Small Block Engine 1989, Standard Port Exhaust Header Gasket Kit by Dynatech®. Dynatech Fiber Race Gaskets are the premium gaskets demanded by many enthusiasts and racers alike. Specifically designed to fit a...
      Made of High Quality MaterialsSold in Pairs
      $15.99
    • Flowtech® - Aluminum Header Gasket Set
      (0 reviews)
      # mpn630006925
      GMC G-Series 7.4L 1989, Aluminum Header Gasket Set by Flowtech®. Material: Aluminum. 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,...
      Engineered for a precise, easy fitManufactured of P73 Ferroglass non-asbestos facing material for long life
      $14.47
    • Flowtech® - Real-Seal™ Aluminum Exhaust Header Gaskets
      (0 reviews)
      # mpn630006924
      GMC G-Series 7.4L 1989, Real-Seal™ Aluminum Exhaust Header Gaskets by Flowtech®. Material: Aluminum. Flowtech REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology. Constructed of...
      Multi-Layer “Dead Soft” aluminum conforms to create a leak-proof sealWill not burn or blow out
      $57.00
    • Hooker® - Super Competition™ Exhaust Header Gasket
      (0 reviews)
      # mpn4564003265
      GMC G-Series 5.0L / 5.7L 1989, 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 constructed...
      Precision fit for improved sealingSteel core provides superior adhesion
      $13.79
    • Howe Racing Enterprises® - Header Gasket
      (0 reviews)
      # 245515994
      GMC G-Series 1989, Header Gasket by Howe Racing Enterprises®. Designed utilizing the latest technology, this product by Howe Racing Enterprises® features premium quality and will perform better than advertised. Perfect for your vehicle...
      High quality at an affordable priceExpertly made from premium materials
      $12.14
    • Patriot Exhaust® - Header Flange Kit
      (0 reviews)
      # 231095711
      GMC G-Series 1989, Header Flange Kit by Patriot Exhaust®. Patriot precision machined header flange kits are available for many popular engine families. Header flange kits come complete with gaskets and header bolts on most applications....
      Precision machined flangeBuilt of High quality materials
      $42.93 - $58.19
    • Percy's High Performance® - Graph-Flex Header Flange Gaskets
      (0 reviews)
      # 652668863
      GMC G-Series 1989, Graph-Flex Header Flange Gaskets by Percy's High Performance®. Exhaust wraps help to retain heat in your exhaust system, which increases Horsepower while reducing radiant heat damage, especially to spark plug wires...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $24.68
    • Percy's High Performance® - Graph-Flex™ Exhaust Header Gaskets
      (0 reviews)
      # 652691889
      GMC G-Series 1989, Graph-Flex™ Exhaust Header Gaskets by Percy's High Performance®. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight on...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $22.18 - $24.68
    • Percy's High Performance® - HTR Collector Gaskets
      (0 reviews)
      # 652777931
      GMC G-Series 1989, HTR Collector Gaskets by Percy's High Performance®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $17.36 - $19.32
    • Percy's High Performance® - Seal-4-Good™ Aluminum Header Flange Gaskets
      (0 reviews)
      # 652426859
      GMC G-Series 1989, Seal-4-Good™ Aluminum Header Flange Gaskets by Percy's High Performance®. Material: Aluminum. Exhaust wraps help to retain heat in your exhaust system, which increases Horsepower while reducing radiant heat damage,...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $36.14
    • Percy's High Performance® - Seal-4-Good™ Exhaust Header Gaskets
      (0 reviews)
      # 652316845
      GMC G-Series 1989, Seal-4-Good™ Exhaust Header Gaskets by Percy's High Performance®. Don’t put up with that ominous, unmistakable “tick, tick, tick” sound of an exhaust manifold leak. If it isn’t leaking air into the manifold...
      Multi-layered for excellent conformability and sealSeals even imperfect flanges
      $34.22 - $36.14
    • Percy's High Performance® - Seal-4-Good™ Header Flange Gaskets
      (0 reviews)
      # 652407805
      GMC G-Series 1989, Seal-4-Good™ Header Flange Gaskets by Percy's High Performance®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $36.14
    • Percy's High Performance® - XX Carbon™ Exhaust Header Gaskets
      (0 reviews)
      # 652336825
      GMC G-Series 1989, XX Carbon™ Exhaust Header Gaskets by Percy's High Performance®. 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
      $19.72 - $22.41
    • Percy's High Performance® - XX Carbon™ Header Flange Gaskets
      (0 reviews)
      # 652781850
      GMC G-Series 1989, XX Carbon™ Header Flange Gaskets by Percy's High Performance®. Exhaust wraps help to retain heat in your exhaust system, which increases Horsepower while reducing radiant heat damage, especially to spark plug wires...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $22.41
    • ProForm® - Soft Conforming Aluminum Header Gasket Set
      (0 reviews)
      # 231095756
      GMC G-Series 1989, Soft Conforming Aluminum Header Gasket Set by ProForm®. Material: Soft Conforming Aluminum. If you're looking for a top-quality upgrade which will enhance the performance of your vehicle and won't cost you an arm and...
      Designed to upgrade your ride's performanceProduced by highly specialized machines to last
      $26.62 - $32.63




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