1991 GMC G-Series Performance Headers

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    • (0 reviews)
      # 448388957
      GMC G-Series with Power Steering 1991, 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...
      $240.04 - $629.46
    • (0 reviews)
      # 496449112
      GMC G-Series 7.4L 1991, 409 SS Upright Exhaust Headers by Flowtech®. Primary Tubing Diameter: 2.25". Collector Outlet Diameter: 4". Emissions: Racing Only. Flowtech Headers are the perfect combination of quality and value....
      $308.95 - $350.95
    • (0 reviews)
      # 231095595
      GMC G-Series with Angle or Straight Plug Heads with Chevy Small Block Engine 1991, Black Painted Dirt Late Model Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.75"-1.875". Collector Outlet Diameter: 3.5". Emissions: Racing...
      $319.99
    • (0 reviews)
      # 231095685
      GMC G-Series with Chevy Small Block Engine 1991, Black Painted Economy Crossover Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Emissions: Racing Only. Finish: Black Painted. These Economy...
      $299.99
    • (0 reviews)
      # 231095612
      GMC G-Series with Chevy Small Block Engine 1991, Black Painted 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". Emissions:...
      $399.99
    • (0 reviews)
      # 231095618
      GMC G-Series with Chevy Small Block Engine 1991, Mid-Length Tube Modified Exhaust Headers by Dynatech®. Emissions: Racing Only. Header Style: Mid-Length Tube. These Mid Length Modified Headers have been designed for use with straight or...
      $275.99 - $329.99
    • (0 reviews)
      # 231095586
      GMC G-Series with Chevy Small Block Engine 1991, Mild Steel 604 Crate Engine Dirt Late Model Exhaust Header Kit by Dynatech®. Primary Tubing Diameter: 1.625"-1.75". Collector Outlet Diameter: 3". Emissions: Racing Only. These 604 Crate...
      $379.99
    • (0 reviews)
      # 231095675
      GMC G-Series with Chevy Small Block Engine 1991, Mild Steel Black Painted Stock Clip Exhaust Headers by Dynatech®. Collector Outlet Diameter: 3". Emissions: Racing Only. Finish: Black Painted. These Small Block Chevy IMCA Southern Sport...
      $309.99 - $314.99
    • (1 review)
      # 270944041
      GMC G-Series with Chevy Small Block Engine 1991, Pro Cruiser Polished Street Rod Small Block Block Hugger Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.63". Collector Outlet Diameter: 2.5". Emissions: Racing Only. Finish:...
      $344.99
    • (0 reviews)
      # 231095658
      GMC G-Series with Chevy Small Block Engine 1991, Stainless Steel 604 Crate Engine Dirt Late Model Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.625"-1.75". Collector Outlet Diameter: 3". Emissions: Racing Only. These...
      $924.99
    • (0 reviews)
      # 231095493
      GMC G-Series 7.4L with Chevy Big Block Engine 1991, Stainless Steel Long Tube Exhaust Headers by Dynatech®. Emissions: Racing Only. Header Style: Long Tube. These Long Tube Dragster Headers are designed with looks and performance in mind.
      $739.99 - $1,544.99
    • (0 reviews)
      # 231095664
      GMC G-Series 1991, Stainless Steel Natural Weld-up Dragster Exhaust Header Kit by Dynatech®. Emissions: Racing Only. Finish: Natural. Designed specifically for strut type front end cars and dragsters, this kit allows you to fabricate...
      $399.99
    • (0 reviews)
      # 781816778
      GMC G-Series 1991, Racing 4-1 Long Tube Exhaust Headers by Torxe®. Primary Tubing Diameter: 1.25". Collector Outlet Diameter: 3". Emissions: Racing Only. Header Style: Long Tube. This product is made of high-quality materials to serve...
      $200.00
    • (0 reviews)
      # mpn4351213861
      GMC G-Series 5.0L / 5.7L 1991, 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
      $263.82
    • (0 reviews)
      # 378638927
      GMC G1500 / G2500 / G3500 1991, Fenderwell Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Emissions: CARB compliant. This superior Patriot EXhaust product is just for you....
      $297.89 - $573.35
    • (0 reviews)
      # 91567234
      GMC G-Series 1991, Lakester Steel Weld-Up Exhaust Kit by Patriot Exhaust®. Emissions: Racing Only. Material: Steel. This superior Patriot EXhaust product is just for you. Carefully designed for maximum performance, is will more than...
      $229.26 - $270.62
    • (0 reviews)
      # 378638915
      GMC G1500 / G2500 / G3500 1991, 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 performance, is...
      $315.49 - $679.49
    • (0 reviews)
      # 378622663
      GMC G-Series 5.0L / 5.7L 1991, 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...
      $266.11 - $556.88
    • (0 reviews)
      # 270944019
      GMC G-Series with Small Block Chevy Engine 1991, Steel Raw Long Tube Bucket Sprint Car Style Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3.5". Emissions: EPA compliant. Finish: Raw....
      $236.01
    • (0 reviews)
      # 231095746
      GMC G-Series 1991, 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...
      $202.89 - $530.71
    • (0 reviews)
      # 378622659
      GMC G-Series 5.0L / 5.7L 1991, Street Rod Sprint Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3.5". Emissions: EPA compliant. This superior Patriot EXhaust product is just for you....
      $264.29 - $512.25
    • (0 reviews)
      # mpn358950110
      GMC G-Series 7.4L with Big Block Chevy Engine 1991, Tri-5 Steel Raw Mid-Length Tube Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 2". Collector Outlet Diameter: 3.5". Emissions: Racing Only. Finish: Raw. Color: Gray....
      $263.60
    • (0 reviews)
      # 231320721
      GMC G-Series with Chevy Small Block Engine 1991, 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
      $261.32 - $699.45
    • (0 reviews)
      # 87333428
      GMC G-Series with Chevy Small Block Engine 1991, 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
      $261.32 - $301.92
    • (0 reviews)
      # 266643066
      GMC G-Series with Chevy Small Block Engine 1991, 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
      $144.22
    • (0 reviews)
      # 231320760
      GMC G-Series with Chevy Small Block Engine 1991, 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 7.4L with Chevy Big Block Engine 1991, 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
      $340.88
    • (0 reviews)
      # 466734134
      GMC G-Series with Chevy Small Block Engine 1991, 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
      $261.32 - $292.18
    • (0 reviews)
      # 231320895
      GMC G-Series with Chevy Small Block Engine 1991, 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
      $154.18 - $212.02
    • (0 reviews)
      # 231320974
      GMC G-Series 1991, Sprint Car Exhaust Headers by Schoenfeld Headers®. Emissions: Racing Only. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with...
      $221.66 - $608.29
    • (0 reviews)
      # 266652872
      GMC G-Series with Chevy Small Block Engine 1991, Steel Painted 180 Crossover Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Finish: Painted. This top-notch product by Schoenfeld...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $271.78
    • (0 reviews)
      # 87333532
      GMC G-Series with Chevy Small Block Engine 1991, 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
      $599.72 - $702.28
    • (0 reviews)
      # 266643608
      GMC G-Series with Chevy Small Block Engine 1991, 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
      $133.12
    • (0 reviews)
      # 990455055
      GMC G-Series 5.0L / 5.7L 1991, Header Gasket by AllStar Performance®, 1 Piece. Durable reinforced steel core and graphite composite gaskets remain soft and pliable to conform to header and head surfaces providing an excellent, long...
      Precise manufacturing and high-grade materialsExpertly Crafted from the highest grade materials
      $7.59 - $9.49
    • (0 reviews)
      # 231095642
      GMC G-Series with Chevy Small Block Engine / with LS-Based Engines 1991, MuscleMAXX Stainless Steel Natural Header Reducer Cone Kit by Dynatech®. Finish: Natural. Material: Stainless Steel. Dynatech® reducer cone kits for MuscleMaxx...
      Made of High Quality MaterialsBuilt to Last
      $139.99
    • (0 reviews)
      # mpn358582413
      GMC G-Series 5.0L / 5.7L 1991, 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)
      # 87333477
      GMC G-Series 1991, 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
      $44.22 - $53.42
    • (0 reviews)
      # mpn306537478
      GMC G-Series 5.0L / 5.7L For Stock Or CNC Ported Heads 1991, 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
    • (0 reviews)
      # mpn583856284
      GMC G-Series 5.0L / 5.7L 1991, 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
      $13.47
    • (0 reviews)
      # 270943941
      GMC G-Series with Chevy Small Block Engine 1991, 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
    • (0 reviews)
      # 270943948
      GMC G-Series with Chevy Small Block Engine 1991, 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
    • (0 reviews)
      # 270943973
      GMC G-Series with Chevy Small Block Engine 1991, 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
    • (0 reviews)
      # 270943978
      GMC G-Series with Chevy Small Block Engine 1991, 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
    • (0 reviews)
      # 118585670
      GMC G-Series 1991, Exhaust Header Gaskets by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack! All...
      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)
      # 270943935
      GMC G-Series with Small Block Chevy Engine 1991, 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
      $15.59
    • (0 reviews)
      # 466230476
      GMC G-Series 7.4L 1991, Multi-Layer Steel Exhaust Header Gasket 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
      $38.69
    • (0 reviews)
      # mpn4478724383
      GMC G3500 7.4L 1991, 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
      $38.69
    • (0 reviews)
      # 623091687
      GMC G-Series 1991, 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
      $12.03
    • (0 reviews)
      # 231095711
      GMC G-Series 1991, 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
      $46.51 - $63.15
    • (0 reviews)
      # 652668863
      GMC G-Series 1991, Graph-Flex Header Flange Gaskets by Percy's High Performance®. Persy's High Performance makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $23.97
    • (0 reviews)
      # 652691889
      GMC G-Series 1991, Graph-Flex™ 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
      $21.54 - $23.97
    • (0 reviews)
      # 652777931
      GMC G-Series 1991, 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 utilizing the latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $16.86 - $18.77
    • (0 reviews)
      # 652426859
      GMC G-Series 1991, Seal-4-Good™ Aluminum Header Flange Gaskets by Percy's High Performance®. Material: Aluminum. Percy's High Performance makes exhaust manifold and collector gaskets that will withstand the temperatures generated by...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $35.11
    • (0 reviews)
      # 652316845
      GMC G-Series 1991, Seal-4-Good™ 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
      $33.24 - $35.11
    • (0 reviews)
      # 652407805
      GMC G-Series 1991, 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
      $35.11
    • (0 reviews)
      # 652336825
      GMC G-Series 1991, 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
      $20.18 - $22.77
    • (0 reviews)
      # 652781850
      GMC G-Series 1991, XX Carbon™ Header Flange Gaskets by Percy's High Performance®. Persy's High Performance makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $21.77
    • (0 reviews)
      # 231095756
      GMC G-Series 1991, 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
      $25.40 - $33.36
    • (0 reviews)
      # 482069989
      GMC G-Series 1991, Exhaust Header Gasket by Remflex®. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees - day after day, week...
      $30.58 - $35.99
    • (0 reviews)
      # 87333471
      GMC G-Series 1991, Exhaust Header Gasket 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
      $10.93 - $15.72




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