1991 GMC Syclone Performance Headers

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    • (0 reviews)
      # mpn4498826903
      GMC Syclone 1991, Exhaust Header Gaskets by JBA®. JBA is proud to offer accessories to aid in the fitment of your JBA exhaust product. This product is made of high-quality materials to serve you for years to come. Designed using...
      JBA's premium header flange gaskets are made extra thick from a specially made formulated gasket materialTheir gaskets are rated up to 1100 F
      $42.89
    • (0 reviews)
      # mpn4483467717
      GMC Syclone 1991, 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
      $23.97
    • (0 reviews)
      # mpn4483467728
      GMC Syclone 1991, HTR Oval 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.77
    • (0 reviews)
      # mpn4483467759
      GMC Syclone 1991, 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
      $35.11
    • (0 reviews)
      # mpn4483467612
      GMC Syclone 1991, XX Carbon™ 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
      $21.77
    • (0 reviews)
      # 652820928
      GMC Syclone 1991, Stainless Steel Vibe-Lock Header Bolt Kit by Percy's High Performance®. Material: Stainless Steel. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the...
      Built to match your exact requirementsHigh quality you can rely on
      $13.77 - $15.66
    • (0 reviews)
      # mpn2072497247
      GMC Syclone 1991, Cast Iron Natural Exhaust Manifold by Dorman®. Position: Driver Side. Emissions: CARB compliant. Finish: Natural. This product is made of high-quality materials to serve you for years to come. Designed using...
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $79.95
    • (0 reviews)
      # mpn597840
      GMC Syclone 1991, Composite Exhaust Manifold Gasket Set by Victor Reinz®. Material: Composite. 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...
      High quality at an affordable priceExpertly made from premium materials
      $6.52
    • (0 reviews)
      # mpn616617
      GMC Syclone 1991, Graphite/Wire Mesh With Sleeve Exhaust Seal Ring by Victor Reinz®. Material: Graphite/Wire Mesh With Sleeve. This product is made of high-quality materials to serve you for years to come. Designed using...
      High quality at an affordable priceExpertly made from premium materials
      $6.61
    • (0 reviews)
      # mpn4486227894
      GMC Syclone 1991, Exhaust Manifold Flange Gasket by Mahle®. 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 needs...
      High quality at an affordable priceExpertly made from premium materials
      $9.42
    • (0 reviews)
      # mpn1143023567
      GMC Syclone 1991, 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
      $3.61
    • (0 reviews)
      # 231101876
      GMC Syclone 1991, Metal Exhaust Manifold Bolt and Spring Kit by Dorman®. Position: Front. Material: Metal. Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is designed for direct...
      New hardware helps fix exhaust leaksKits include hardware to securely attach the manifold to the exhaust system
      $3.50 - $6.27
    • (0 reviews)
      # 1022159046
      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 with utmost care and meticulous attention to detail to...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $139.75 - $548.31
    • (0 reviews)
      # 659607306
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Basic Kit by Icengineworks®. Quantity: 124 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $419.99
    • (0 reviews)
      # 659607273
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Basic Plus Kit by Icengineworks®. Including 1625BASIC and 1625TTWCS. Quantity: 128 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $499.99
    • (0 reviews)
      # 659607249
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Pro Kit by Icengineworks®. Quantity: 248 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $774.99
    • (0 reviews)
      # 659607225
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Pro Plus Kit by Icengineworks®. Including 1625PRO and 1625TTWCS. Quantity: 252 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $874.99
    • (0 reviews)
      # 659607333
      1625 Series 1-5/8" Outer Diameter Exhaust Tube-Cutting Tool System by Icengineworks®. Including PIV1000 and 1625CSS. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $599.99
    • (0 reviews)
      # 659607440
      1625 Series 1-5/8" Outer Diameter Modeling Exhaust Full System Kit by Icengineworks®. Including 1625PRO, PIV1000, 1625CSS, 1625TTWCS. Quantity: 256 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects....
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $1,399.99
    • (0 reviews)
      # 659607293
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Basic Kit by Icengineworks®. Quantity: 154 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $419.99
    • (0 reviews)
      # 659607337
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Basic Plus Kit by Icengineworks®. Including 1750BASIC and 1750TTWCS. Quantity: 158 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $499.99
    • (0 reviews)
      # 659607207
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Pro Kit by Icengineworks®. Quantity: 308 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $774.99
    • (0 reviews)
      # 659607395
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Pro Plus Kit by Icengineworks®. Including 1750PRO and 1750TTWCS. Quantity: 312 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $874.99
    • (0 reviews)
      # 659607401
      1750 Series 1-3/4" Outer Diameter Exhaust Tube-Cutting Tool System by Icengineworks®. Including PIV1000 and 1750CSS. Quantity: 5 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $699.99
    • (0 reviews)
      # 659607387
      1750 Series 1-3/4" Outer Diameter Modeling Exhaust Full System Kit by Icengineworks®. Including 1750PRO, PIV1000, 1750CSS, 1750TTWCS. Quantity: 317 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects....
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $1,499.99
    • (0 reviews)
      # 659607419
      1875 Series 1-7/8" Outer Diameter Exhaust Tube-Cutting Tool System by Icengineworks®. Including PIV1000 and 1875CSS. Quantity: 5 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $749.99
    • (0 reviews)
      # 659607451
      2000 Series 2" Outer Diameter Exhaust Modeling Block Basic Kit by Icengineworks®. Quantity: 124 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $419.99
    • (0 reviews)
      # 659607284
      2000 Series 2" Outer Diameter Exhaust Modeling Block Basic Plus Kit by Icengineworks®. Including 2000BASIC and 2000TTWCS. Quantity: 128 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $499.99
    • (0 reviews)
      # 659607383
      2000 Series 2" Outer Diameter Exhaust Modeling Block Pro Kit by Icengineworks®. Quantity: 248 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $799.99
    • (0 reviews)
      # 659607374
      2000 Series 2" Outer Diameter Exhaust Modeling Block Pro Plus Kit by Icengineworks®. Including 2000PRO and 2000TTWCS. Quantity: 252 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $874.99
    • (0 reviews)
      # 659607412
      2000 Series 2" Outer Diameter Exhaust Tube-Cutting Tool System by Icengineworks®. Including PIV1000 and 2000CSS. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $649.99
    • (0 reviews)
      # 659607425
      2000 Series 2" Outer Diameter Modeling Exhaust Full System Kit by Icengineworks®. Including 2000PRO, PIV1000, 2000CSS, 2000TTWCS. Quantity: 256 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects....
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $1,499.99
    • (0 reviews)
      # 659607410
      1625 Series 1-5/8" Outer Diameter Exhaust Collector Dummy by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $119.99 - $199.99
    • (0 reviews)
      # 659607447
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Set by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $149.99 - $199.99
    • (0 reviews)
      # mpn4483950933
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block/Starter Tube Adapter by Icengineworks®. Quantity: 1 Piece. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $15.99
    • (0 reviews)
      # mpn4483950934
      1625 Series 1-5/8" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $104.99
    • (0 reviews)
      # 659607407
      1625 Series Exhaust HDPE Tube-Cutting Spacer by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines, fabricators are...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $79.99 - $299.99
    • (0 reviews)
      # 659607369
      1750 Series 1-3/4" Outer Diameter Exhaust Collector Dummy by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $119.99 - $199.99
    • (0 reviews)
      # 659607430
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Set by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $149.99 - $199.99
    • (0 reviews)
      # mpn4483950926
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block/Starter Tube Adapter by Icengineworks®. Quantity: 1 Piece. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $15.99
    • (0 reviews)
      # mpn4483950963
      1750 Series 1-3/4" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $104.99
    • (0 reviews)
      # 659607445
      1875 Series 1-7/8" Outer Diameter 4-into-1 Exhaust Collector Dummy by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $124.99 - $199.99
    • (0 reviews)
      # mpn4483950960
      1875 Series 1-7/8" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $104.99
    • (0 reviews)
      # 659607355
      1875 Series Exhaust HDPE Tube-Cutting Spacer by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines, fabricators are...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $79.99 - $449.99
    • (0 reviews)
      # 659607418
      2000 Series 2" Outer Diameter 4-into-1 Exhaust Collector Dummy by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $124.99 - $199.99
    • (0 reviews)
      # 659607453
      2000 Series 2" Outer Diameter Exhaust Modeling Block Set by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $149.99 - $199.99
    • (0 reviews)
      # mpn4483950967
      2000 Series 2" Outer Diameter Exhaust Modeling Block/Starter Tube Adapter by Icengineworks®. Quantity: 1 Piece. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $15.99
    • (0 reviews)
      # mpn4483950935
      2000 Series 2" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $109.99
    • (0 reviews)
      # 659607429
      2000 Series Exhaust HDPE Tube-Cutting Spacer by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines, fabricators are...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $89.99 - $349.99
    • (0 reviews)
      # mpn4483950968
      2500FE Series 2-1/2" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $149.99
    • (0 reviews)
      # mpn4483950925
      3000FE Series 3" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $149.99
    • (0 reviews)
      # mpn4483950952
      Aluminum Radial Cut Board by Icengineworks®. For cutting metal tube U- and J-bends. Attachment for vertical bandsaw. Quantity: 1 Piece. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $299.99
    • (0 reviews)
      # 1022137080
      Dirt Late Model 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 with utmost care and meticulous attention to...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $348.03 - $640.27
    • (0 reviews)
      # 1022602060
      Sprint Car Exhaust Header 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 utmost care and...
      $221.66 - $591.15
    • (0 reviews)
      # 116547244
      GMC Syclone 1991, Exhaust Manifold Gasket Set by Magnum Gasket®. You'd better be ready to take the heat if you're going to seal an exhaust manifold, where temperatures can often exceed 1,000°F. You can count on Magnum to offer the best...
      Made of High Quality MaterialsThe best combination of steel layers and high-temp gasket materials
      $11.50 - $13.40
    • (0 reviews)
      # mpn2095009871
      GMC Syclone 1991, Cast Iron Natural Exhaust Manifold by ATP®. Position: Passenger Side. Emissions: EPA compliant. Finish: Natural. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed...
      Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
      $58.95



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