1981 GMC G-Series Performance Exhaust Systems

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    • MagnaFlow® - Pre-OBDII Direct Fit Catalytic Converter
      (0 reviews)
      # mpn1132559
      GMC G-Series with PRE-OBDII Models 1981, Pre-OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5"....
      Reduces harmful emissionsExact replacement with little or no fabrication or modifications required
      $280.60
    • Hooker® - Competition™ Mild Steel Black Painted Long Tube Exhaust Headers
      (0 reviews)
      # mpn4564008678
      GMC G-Series Cutaway Van 1981, 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 Style:...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $265.95
    • Flowtech® - 409 SS Natural Upright Exhaust Headers
      (0 reviews)
      # 496468079
      GMC G-Series 5.0L / 5.7L 1981, 409 SS Upright Exhaust Headers by Flowtech®. Collector Outlet Diameter: 3". Color: Silver. Header Coating: Uncoated. Flowtech Headers are the perfect combination of quality and value. Mandrel-bent tubes...
      Consistent tubing diameters for smooth flowIncreases the cylinder scavenging effect and improves engine breathing
      $232.95 - $253.95
    • Hedman Hedders® - Standard Duty Mild Steel Long Tube Exhaust Headers
      (0 reviews)
      # 266627734
      GMC G-Series with Power Steering 1981, 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 Hedman Hedders come...
      Made of High Quality MaterialsBuilt to Last
      $319.82 - $658.56
    • Hedman Hedders® - Standard Duty Mild Steel Long Tube Racing Exhaust Headers
      (0 reviews)
      # 1154716905
      GMC G-Series without Smog Injection or Injection Heads with Power Steering 1981, Standard Duty Mild Steel Long Tube Racing Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Header Style:...
      Made of High Quality MaterialsBuilt to Last
      $267.04 - $536.85
    • Dynatech® - Black Painted Dirt Late Model Exhaust Headers
      (0 reviews)
      # 231092993
      GMC G-Series 5.0L / 5.7L with Angle or Straight Plug Heads with Chevy Small Block Engine 1981, Dirt Late Model Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.75"-1.875". Collector Outlet Diameter: 3.5". Color: Black. Header...
      Gaskets and bolts includedMachine surfaced flanges - no leaks
      $319.99
    • Dynatech® - Black Painted Long Tube Pavement Late Model Exhaust Headers
      (0 reviews)
      # 231093307
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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....
      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)
      # 231093291
      GMC G-Series with Chevy Small Block Engine 1981, 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)
      # mpn4564003252
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, Pro Cruiser Polished Street Rod Small Block Block Hugger Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.63". Collector Outlet Diameter: 2.5". Comes standard with a...
      Improves Performance and Appearance100% stainless steel construction
      $299.99
    • Dynatech® - Stainless Steel 604 Crate Engine Dirt Late Model Exhaust Headers
      (0 reviews)
      # 231093310
      GMC G-Series with Chevy Small Block Engine 1981, 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 Natural Weld-up Dragster Exhaust Header Kit
      (0 reviews)
      # mpn4564003336
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, Stainless Steel Weld-up Dragster Exhaust Header Kit by Dynatech®. Primary Tubing Diameter: 1.875"-2". Color: Natural. Header Coating: Uncoated. These Long Tube Big Block Chevy...
      Tack-welded to make it easy to change or finish weldCNC laser-cut flanges, gaskets and bolts included
      $399.99
    • Advance Adapters® - Exhaust Headers
      (0 reviews)
      # mpn4564004617
      GMC G-Series 5.0L / 5.7L 1981, 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
    • Patriot Exhaust® - Chrome Street Rod Sprint Exhaust Headers
      (0 reviews)
      # mpn4564003297
      GMC G-Series 5.0L / 5.7L 1981, 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)
      # 91567120
      GMC G-Series 5.0L / 5.7L with Small Block Chevy Engine 1981, Lakester Steel Weld-Up Exhaust Kit by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Material: Steel. Give your rod a nostalgic look with our Lakester style weld-up kits....
      Perfect blend of style, quality, and dependabilityGive your rod a nostalgic look
      $210.00 - $217.40
    • Patriot Exhaust® - Roadster Exhaust Headers
      (0 reviews)
      # 378622663
      GMC G-Series 5.0L / 5.7L 1981, 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)
      # 447955976
      GMC G1500 / G2500 / G3500 1981, 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)
      # 231093123
      GMC G-Series 5.0L / 5.7L with Small Block Chevy Engine 1981, Steel Tight Tuck Street Rod Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". This superior Patriot Exhaust product is just for you. Carefully designed for...
      Expertly crafted from premium materialsQuality design and workmanship
      $183.10 - $566.93
    • Schoenfeld Headers® - Conventional Crossover Exhaust Headers
      (0 reviews)
      # 231319414
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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....
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $270.72 - $686.52
    • Schoenfeld Headers® - DIRT Modified Exhaust Headers
      (0 reviews)
      # 87332792
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $268.79 - $306.52
    • Schoenfeld Headers® - Demolition Derby Exhaust Headers
      (0 reviews)
      # mpn4564003611
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $148.46
    • Schoenfeld Headers® - Dirt Late Model Exhaust Headers
      (0 reviews)
      # 231319478
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $291.09 - $707.57
    • Schoenfeld Headers® - Exhaust Header
      (0 reviews)
      # 513301507
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, Exhaust Header 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
      $198.41 - $293.96
    • Schoenfeld Headers® - H Style Conventional Crossover Headers
      (0 reviews)
      # 466931645
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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....
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $284.10 - $315.25
    • Schoenfeld Headers® - IMCA Modified Exhaust Headers
      (0 reviews)
      # 87332840
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, IMCA 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $172.15 - $391.02
    • Schoenfeld Headers® - SBC Chassis Steel Exhaust Headers
      (0 reviews)
      # 231319524
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $182.89 - $218.25
    • Schoenfeld Headers® - Steel Painted 180 Crossover Exhaust Headers
      (0 reviews)
      # mpn4564002952
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, Steel Painted 180 Crossover Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Header Coating: Painted. This top-notch...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $296.15
    • Schoenfeld Headers® - Stock Clip Steel Painted Exhaust Headers
      (0 reviews)
      # 231319571
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $188.49 - $301.56
    • Schoenfeld Headers® - Street Stock Steel Painted Exhaust Headers
      (0 reviews)
      # 231319578
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, Street Stock 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $225.96 - $617.36
    • Schoenfeld Headers® - Tri-Y Modified Exhaust Headers
      (0 reviews)
      # 87332873
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $663.01 - $689.43
    • Schoenfeld Headers® - Zoomie Exhaust Headers
      (0 reviews)
      # mpn4564003631
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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
      $137.04
    • MagnaFlow® - Standard Direct Fit Catalytic Converter
      (0 reviews)
      # mpn1120837
      GMC G-Series 1981, Standard Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5". Catalytic...
      Converter body manufactured from heavy-duty stainless steelReduces harmful emissions
      $151.81
    • MagnaFlow® - Standard Universal Fit Oval Body Catalytic Converter
      (0 reviews)
      # mpn1038322
      GMC G-Series 1981, Standard Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet...
      Reduces harmful emissionsRequires fabrication or modifications to be installed into exhaust system
      $81.30
    • Hooker® - 304 SS Natural LS Turbo Crossover Tube
      (0 reviews)
      # mpn4478205127
      GMC G1500 / G2500 / G3500 Automatic Transmission 1981, 304 SS Natural LS Turbo Crossover Tube by Hooker®. Material: 304 SS. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
      Choose Cross-Over Tube Based on Type of Transmission & Bell-HousingCross-Over Tubes Are 16 Gauge, Mandrel Bent 304 Stainless Steel & Include a Flex Joint & V-Band Flanges
      $204.95
    • Dynatech® - MuscleMAXX Stainless Steel Natural Header Reducer Cone Kit
      (0 reviews)
      # 231093031
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine / with LS-Based Engines 1981, MuscleMAXX Stainless Steel Header Reducer Cone Kit by Dynatech®. Material: Stainless Steel. Dynatech® reducer cone kits for MuscleMaxx headers....
      Made of High Quality MaterialsBuilt to Last
      $139.99
    • Moroso® - Aluminum Header Flange Kit
      (0 reviews)
      # mpn358582413
      GMC G-Series 5.0L / 5.7L 1981, 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® - Aluminum Inner Header Flange
      (0 reviews)
      # mpn359115880
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, Aluminum Inner Header Flange by Schoenfeld Headers®. Primary Tubing Diameter: 1.25". Material: Aluminum. This top-notch product by Schoenfeld Headers is made to give that...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $61.79
    • Hooker® - Super Competition™ Exhaust Header Gasket
      (0 reviews)
      # mpn4564003265
      GMC G-Series F / H / L / M Engine VIN Character 1981, 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...
      Precision fit for improved sealingSteel core provides superior adhesion
      $13.79
    • Flowtech® - Aluminum Header Gasket Set
      (0 reviews)
      # 231319371
      GMC G-Series 5.0L / 5.7L 1981, 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...
      Engineered for a precise, easy fitManufactured of P73 Ferroglass non-asbestos facing material for long life
      $10.85
    • BBK® - Premium Header Gasket Set
      (0 reviews)
      # mpn306537478
      GMC G-Series 5.0L / 5.7L For Stock Or CNC Ported Heads 1981, 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
    • Dynatech® - Aluminum Adapter Plate
      (0 reviews)
      # mpn358945752
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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)
      # mpn358945745
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, Fiber Exhaust Header Gasket by Dynatech®. Material: Fiber. Dynatech Fiber Race Gaskets are the premium gaskets demanded by many enthusiasts and racers alike. Specifically...
      Made of High Quality MaterialsNo Leaks
      $15.99
    • Dynatech® - Spread Port Exhaust Header Gasket Kit
      (0 reviews)
      # mpn358945740
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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...
      Made of High Quality MaterialsBuilt to Last
      $15.99
    • Dynatech® - Standard Port Exhaust Header Gasket Kit
      (0 reviews)
      # mpn358945741
      GMC G-Series 5.0L / 5.7L with Chevy Small Block Engine 1981, 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...
      Made of High Quality MaterialsSold in Pairs
      $15.99
    • Mr. Gasket® - Multi-Layered Steel Exhaust Header Gaskets
      (0 reviews)
      # 1022402120
      GMC G-Series 5.0L / 5.7L 1981, Multi-Layered Steel Exhaust Header Gaskets by Mr. Gasket®. Material: Multi-Layered Steel. Whatever exhaust system you install on your engine, whether it's a set of chromed headers or simply a set of...
      Gaskets for every application, from mild to wildDesigned to restore functionality
      $18.08
    • Spectre Performance® - Compressed Ceramic Fiber Exhaust Header Gaskets
      (0 reviews)
      # 118584877
      GMC G1500 / G2500 5.0L / 5.7L 1981, Compressed Ceramic Fiber Exhaust Header Gaskets by Spectre Performance®. Material: Compressed Ceramic Fiber. Rooted in racing, Spectre Performance designs and builds every product with the same goal...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $19.81
    • Brodix® - Spread Port Exhaust Header Gasket
      (0 reviews)
      # mpn584600114
      GMC G-Series 5.0L / 5.7L with Small Block Chevy Engine 1981, 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...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $16.04
    • Cometic Gasket® - Multi-Layer Steel Exhaust Header Gaskets
      (0 reviews)
      # 1610593474
      GMC G-Series 5.0L / 5.7L 1981, 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...
      Made of High Quality MaterialsBuilt to Last
      $19.13 - $36.93
    • Cometic Gasket® - Multi-Layer Steel Exhaust Manifold Gasket
      (0 reviews)
      # 564899712
      GMC G-Series 1981, 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
      $36.81
    • Howe Racing Enterprises® - Header Gasket
      (0 reviews)
      # 245515984
      GMC G-Series 1981, 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)
      # 231093116
      GMC G-Series 5.0L / 5.7L with Small Block Chevy Engine 1981, 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...
      Precision machined flangeBuilt of High quality materials
      $42.93 - $57.08
    • Percy's High Performance® - Graph-Flex Header Flange Gaskets
      (0 reviews)
      # 652734885
      GMC G-Series 1981, 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)
      # 652236797
      GMC G-Series 1981, 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)
      # 652640886
      GMC G-Series 1981, 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)
      # 652746941
      GMC G-Series 1981, 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)
      # 378622672
      GMC G-Series 1981, 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™ Round Header Flange Gaskets
      (0 reviews)
      # 652547872
      GMC G-Series 1981, Seal-4-Good™ Round 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)
      # 652700867
      GMC G-Series 1981, XX Carbon™ Exhaust Header 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
      $19.72 - $22.41
    • Percy's High Performance® - XX Carbon™ Header Flange Gaskets
      (0 reviews)
      # 652491834
      GMC G-Series 1981, 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)
      # mpn358493021
      GMC G-Series 5.0L / 5.7L 1981, Soft Conforming Aluminum Header Gasket Set by ProForm®. Material: Soft Conforming Aluminum. Made From Soft Conforming Aluminum Material, Easily Mates and Conforms To The Surface Of Exhaust Headers To...
      Designed to upgrade your ride's performanceProduced by highly specialized machines to last
      $26.62
    • Remflex® - Exhaust Header Gaskets
      (0 reviews)
      # 841709828
      GMC G-Series 5.0L / 5.7L 1981, Exhaust Header Gaskets by Remflex®. Stahl 7-Bolt Pattern. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications. Whether you have an old pick-up that...
      Designed to crush 50%.This allows them to fill gaps in the flange surface up to 1/16"3,000 degrees F - far exceeding that of any vehicle's exhaust system temperature
      $30.06 - $31.09




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    1981 GMC G-Series Performance Exhaust Systems Reviews

    Average rating:    4 - 3 reviews
    4.5 of 5
    Kooks
    Product very good. Love it.
    Posted by Jojie (Mississauga, ON) / August 8, 20182010 Toyota Corolla
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    1981 GMC G-Series Models
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