2014 GMC Sierra Performance Headers

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    • (0 reviews)
      # 821927610
      GMC Sierra 2014, Twisted Steel™ Exhaust Headers by aFe®. The new Twisted Steel performance header from aFe Power is redefining the header industry with the new pulse control technology. aFe engineers have designed this header using...
      $741.00 - $1,809.75
    • (0 reviews)
      # 1022308058
      GMC Sierra Denali 2014, Twisted Steel™ Exhaust Headers by aFe®. The new Twisted Steel performance header from aFe Power is redefining the header industry with the new pulse control technology. aFe engineers have designed this header...
      $741.00 - $1,809.75
    • (0 reviews)
      # mpn3069277255
      GMC Sierra 2014, BladeRunner Ductile Iron Exhaust Manifold by aFe®. Emissions: EPA compliant. Replace the exhaust manifold on your Dodge diesel with the BladeRunner manifold. It was created to address a cracking problem with the stock...
      $493.05
    • (0 reviews)
      # mpn548244558
      GMC Sierra 5.3L Gas 2014, Twisted Steel™ Stainless Steel Long Tube Exhaust Headers with Non-Catted Y-Pipe by aFe®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 3". Emissions: Racing Only. Header Style: Long Tube. The new...
      $1,482.00
    • (0 reviews)
      # 171671888
      GMC Sierra 5.3L / 6.2L 2014, Long Tube Exhaust Headers by Kooks®. Collector Outlet Diameter: 3". Emissions: EPA compliant. Header Material: Stainless Steel. Header Style: Long Tube. This product is made of high-quality materials to...
      $1,181.09 - $1,195.64
    • (0 reviews)
      # 171671909
      GMC Sierra Denali 5.3L / 6.2L 2014, Long Tube Exhaust Headers by Kooks®. Collector Outlet Diameter: 3". Emissions: EPA compliant. Header Material: Stainless Steel. Header Style: Long Tube. This product is made of high-quality materials...
      $1,181.09 - $1,195.64
    • (0 reviews)
      # 409482862
      GMC Sierra Denali 2014, Mild Steel Long Tube Exhaust Headers by PaceSetter®. Primary Tubing Diameter: 1.875". Collector Outlet Diameter: 3". Emissions: EPA compliant. Header Style: Long Tube. Manufactured using mandrel-bent, 16-gauge...
      $334.98 - $499.61
    • (0 reviews)
      # 409370845
      GMC Sierra 2014, Mild Steel Long Tube Exhaust Headers by PaceSetter®. Primary Tubing Diameter: 1.875". Collector Outlet Diameter: 3". Emissions: EPA compliant. Header Style: Long Tube. Manufactured using mandrel-bent, 16-gauge mild...
      $334.98 - $499.61
    • (0 reviews)
      # 409330845
      GMC Sierra Base / SLE / SLT 5.3L 2014, Mild Steel Short Tube Exhaust Headers by PaceSetter®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Emissions: EPA compliant. Header Style: Short Tube. Flanged Collector. If you...
      $231.33 - $401.59
    • (0 reviews)
      # 409402828
      GMC Sierra Denali 5.3L 2014, Mild Steel Short Tube Exhaust Headers by PaceSetter®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Emissions: EPA compliant. Header Style: Short Tube. Flanged Collector. If you want to...
      $231.33 - $401.59
    • (0 reviews)
      # 221599959
      GMC Sierra 2014, Cat4ward Stainless Steel Shorty Exhaust Headers by JBA®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Header Material: Stainless Steel. Header Style: Short Tube. JBA...
      $493.89 - $673.10
    • (0 reviews)
      # 221600031
      GMC Sierra Denali 6.2L 2014, Cat4ward Stainless Steel Shorty Exhaust Headers by JBA®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Header Material: Stainless Steel. Header Style: Short...
      $493.89 - $622.01
    • (0 reviews)
      # 142866750
      GMC Sierra 5.3L / 6.2L 2014, 409 SS Short Tube Exhaust Headers by Flowtech®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Emissions: Racing Only. Header Style: Short Tube. Flowtech’s emissions-friendly headers are...
      +1
      $257.95 - $308.95
    • (0 reviews)
      # 142866799
      GMC Sierra Denali 5.3L / 6.2L 2014, 409 SS Short Tube Exhaust Headers by Flowtech®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Emissions: Racing Only. Header Style: Short Tube. Flowtech’s emissions-friendly...
      +1
      $257.95 - $308.95
    • (0 reviews)
      # 623388690
      GMC Sierra Denali 5.3L / 6.2L 2014, Exhaust Header by Dynatech®. Emissions: Racing Only. Dynatech is proud to announce the launch of new Stainless Steel Header System for the ’09-’15 Cadillac CTS-V with a 6.2L engine. Simply...
      $899.99
    • (0 reviews)
      # 623084693
      GMC Sierra 4.3L / 5.3L / 6.2L 2014, Exhaust Header by Dynatech®. Emissions: Racing Only. Dynatech is proud to announce the launch of new Stainless Steel Header System for the ’09-’15 Cadillac CTS-V with a 6.2L engine. Simply...
      $899.99
    • (0 reviews)
      # mpn4351213861
      GMC Sierra 2014, Exhaust Headers by Advance Adapters®. Emissions: EPA compliant. 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...
      High quality at an affordable priceExpertly made from premium materials
      $208.86
    • (0 reviews)
      # 378622002
      GMC Sierra 2014, 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 will more than...
      $315.49 - $679.49
    • (0 reviews)
      # 378622326
      GMC Sierra 1500 / 2500 HD Denali 2014, 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...
      $315.49 - $679.49
    • (0 reviews)
      # 378622359
      GMC Sierra Denali 5.3L / 6.0L / 6.2L 2014, 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...
      $266.11 - $556.88
    • (0 reviews)
      # 378622049
      GMC Sierra 5.3L / 6.0L / 6.2L 2014, 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)
      # 378622346
      GMC Sierra Denali 5.3L / 6.0L / 6.2L 2014, 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...
      $254.08 - $512.24
    • (0 reviews)
      # 378622045
      GMC Sierra 5.3L / 6.0L / 6.2L 2014, 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...
      $254.08 - $512.24
    • (0 reviews)
      # mpn3513651682
      GMC Sierra 5.3L 2014, Steel Long Tube 4-2-1 Tri-Y Exhaust Header Kit with Y-Pipes by Doug Thorley Headers®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Header Style: Long Tube. This...
      $811.00
    • (0 reviews)
      # mpn3513651683
      GMC Sierra 5.3L / 6.2L 2014, Steel Short Tube Exhaust Headers by Doug Thorley Headers®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Header Style: Short Tube. These shortie headers are a...
      $578.00
    • (0 reviews)
      # 466780654
      GMC Sierra 2014, 304 SS Mill Collector Flange by Stainless Works®. Finish: Mill. Material: 304 SS. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $43.70
    • (0 reviews)
      # 466829654
      GMC Sierra Denali 2014, 304 SS Mill Collector Flange by Stainless Works®. Finish: Mill. Material: 304 SS. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion....
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $43.70
    • (0 reviews)
      # mpn358582413
      GMC Sierra 2014, 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 specifically...
      High quality at an affordable priceExpertly made from premium materials
      $115.02
    • (0 reviews)
      # 245516040
      GMC Sierra Denali 2014, 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...
      High quality at an affordable priceExpertly made from premium materials
      $11.79
    • (0 reviews)
      # 245516032
      GMC Sierra 2014, 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
      $11.79
    • (0 reviews)
      # 1022587054
      GMC Sierra Denali 5.3L / 6.0L 2014, Graph-Flex™ Exhaust Collector Gasket by Percy's High Performance®. Collector Outlet Diameter: 2.625". Seal your collector flanges properly with gaskets from Persy's High Performance. These metal...
      Metal gaskets seal even imperfect flangesReusable
      $14.61
    • (0 reviews)
      # 1022148038
      GMC Sierra 5.3L / 6.0L 2014, Graph-Flex™ Exhaust Collector Gasket by Percy's High Performance®. Collector Outlet Diameter: 2.625". Seal your collector flanges properly with gaskets from Persy's High Performance. These metal gaskets...
      Metal gaskets seal even imperfect flangesReusable
      $14.61
    • (0 reviews)
      # mpn4483467717
      GMC Sierra 4.3L 2014, 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)
      # 652608779
      GMC Sierra 2014, 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
      $14.16 - $18.77
    • (0 reviews)
      # 652459804
      GMC Sierra Denali 6.0L 2014, 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $14.16
    • (0 reviews)
      # 710716577
      GMC Sierra 2014, 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)
      # 1022095073
      GMC Sierra Denali 5.3L / 6.0L 2014, XX Carbon™ Exhaust Collector Gasket by Percy's High Performance®. Collector Outlet Diameter: 2.625". Persy's High Performance makes exhaust manifold and collector gaskets that will withstand the...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $13.26
    • (0 reviews)
      # 1022432083
      GMC Sierra 5.3L / 6.0L 2014, XX Carbon™ Exhaust Collector Gasket by Percy's High Performance®. Collector Outlet Diameter: 2.625". Persy's High Performance makes exhaust manifold and collector gaskets that will withstand the...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $13.26
    • (0 reviews)
      # 346356280
      GMC Sierra 2014, 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
      $21.75 - $21.77
    • (0 reviews)
      # 262494919
      GMC Sierra Denali 6.0L 2014, 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...
      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
      $28.79
    • (0 reviews)
      # 262494873
      GMC Sierra 6.0L 2014, 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,...
      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
      $28.79
    • (0 reviews)
      # mpn1903660761
      GMC Sierra 2014, Header Bolt Set by Mr. Gasket®. Whatever exhaust system you install on your engine, whether it’s a set of chromed headers or simply a set of cleaned up flat black rams horn manifolds, you’ll need gaskets and...
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $37.79
    • (0 reviews)
      # 652352838
      GMC Sierra 2014, Vibe-Lock Header Bolt Kit by Percy's High Performance®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail, this...
      Built to match your exact requirementsHigh quality you can rely on
      $13.77 - $105.69
    • (0 reviews)
      # 346356425
      GMC Sierra 2500 HD Denali 2014, Vibe-Lock Header Bolt Kit by Percy's High Performance®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to...
      Built to match your exact requirementsHigh quality you can rely on
      $84.79 - $105.69
    • (0 reviews)
      # 314959284
      GMC Sierra Denali 5.3L / 6.0L / 6.2L 2014, Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the...
      High quality at an affordable priceExpertly made from premium materials
      $20.00 - $62.31
    • (0 reviews)
      # 314958654
      GMC Sierra 5.3L / 6.0L / 6.2L 2014, Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking...
      High quality at an affordable priceExpertly made from premium materials
      $20.00 - $62.31
    • (0 reviews)
      # 276235996
      GMC Sierra Denali 2014, Cast Iron Natural Exhaust Manifold by Dorman®. Emissions: CARB compliant. Finish: Natural. Color: Natural. Header Coating: Uncoated. This product is made of high-quality materials to serve you for years to come....
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $60.95 - $129.95
    • (0 reviews)
      # 276235984
      GMC Sierra 2014, Cast Iron Natural Exhaust Manifold by Dorman®. Emissions: CARB compliant. Finish: Natural. Color: Natural. Header Coating: Uncoated. This product is made of high-quality materials to serve you for years to come....
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $60.95 - $129.95
    • (0 reviews)
      # 231283268
      GMC Sierra 6.0L 2014, Cast Iron Natural Exhaust Manifold by ATP®. Emissions: EPA compliant. Finish: Natural. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each...
      Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
      $62.90 - $87.56
    • (0 reviews)
      # 231283305
      GMC Sierra Denali 6.0L 2014, Cast Iron Natural Exhaust Manifold by ATP®. Emissions: EPA compliant. Finish: Natural. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative....
      Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
      $62.90 - $87.56
    • (0 reviews)
      # 231099738
      GMC Sierra Denali 6.6L 2014, Stainless Steel Exhaust Manifold Clamp by Dorman®. Material: Stainless Steel. Easily repair exhaust leaks without removing broken manifold bolts with Dorman’s Exhaust Manifold to Cylinder Head Repair...
      Direct replacement for a proper fit every timeReplacement restores drivability and proper engine performance
      $22.74 - $42.95
    • (0 reviews)
      # 231111565
      GMC Sierra 6.6L 2014, Stainless Steel Exhaust Manifold Clamp by Dorman®. Material: Stainless Steel. Easily repair exhaust leaks without removing broken manifold bolts with Dorman’s Exhaust Manifold to Cylinder Head Repair Clamp. This...
      Direct replacement for a proper fit every timeReplacement restores drivability and proper engine performance
      $22.74 - $42.95
    • (0 reviews)
      # mpn4476219268
      GMC Sierra 2014, GM Original Equipment™ Exhaust Manifold Flange Gasket by ACDelco®. Position: Rear. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $9.40
    • (0 reviews)
      # 231283266
      GMC Sierra 2014, GM Original Equipment™ Exhaust Manifold Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $5.38 - $28.79
    • (0 reviews)
      # 231283303
      GMC Sierra Denali 2014, GM Original Equipment™ Exhaust Manifold Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $6.86 - $28.79
    • (0 reviews)
      # 564824732
      GMC Sierra 2014, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $9.15 - $27.07
    • (0 reviews)
      # 564934753
      GMC Sierra Denali 2014, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $9.15 - $27.07
    • (0 reviews)
      # 622945769
      GMC Sierra Denali 2014, Exhaust Manifold Flange Gasket by Victor Reinz®. 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...
      High quality at an affordable priceExpertly made from premium materials
      $5.98 - $6.47
    • (0 reviews)
      # 622975686
      GMC Sierra 2014, Exhaust Manifold Flange Gasket by Victor Reinz®. 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
      $5.98 - $6.47
    • (1 review)
      # mpn260011023
      GMC Sierra Denali 5.3L / 6.0L / 6.2L 2014, Exhaust Manifold Flange Gasket by Mahle®. Position: Driver Side. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...
      High quality at an affordable priceExpertly made from premium materials
      $5.64




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