2011 GMC Sierra Performance Headers

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    • (0 reviews)
      # mpn4491655009
      GMC Sierra 2011, Classic Polish Style Stainless Steel Ceramic Coated Long Tube Exhaust Headers by Jet-Hot®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 3". Emissions: EPA compliant. Finish: Ceramic Coated. Color: Chrome....
      $748.80
    • (0 reviews)
      # 1022090155
      GMC Sierra 2011, 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...
      $798.00 - $1,809.75
    • (0 reviews)
      # 564642761
      GMC Sierra Denali 2011, 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...
      $798.00 - $1,809.75
    • (0 reviews)
      # mpn3069277255
      GMC Sierra 2011, 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)
      # 781276783
      GMC Sierra Denali 2011, Polished Long Tube Exhaust Headers with Y-Pipe by Torxe™. Collector Outlet Diameter: 3". Emissions: Racing Only. Finish: Polished. Color: Silver. Header Style: Long Tube. This product is made of high-quality...
      $460.00
    • (0 reviews)
      # mpn4494135020
      GMC Sierra 4.8L / 5.3L / 6.0L / 6.2L 2011, Stainless Steel Polished Long Tube Exhaust Headers with Y-Pipe by Torxe™. Primary Tubing Diameter: 1.88". Collector Outlet Diameter: 3". Emissions: Racing Only. Finish: Polished. Color:...
      $460.00
    • (0 reviews)
      # 409386833
      GMC Sierra Denali 6.0L 2011, Mild Steel Long Tube Exhaust Headers by PaceSetter®. Primary Tubing Diameter: 1.875". Collector Outlet Diameter: 3". Emissions: EPA compliant. Header Style: Long Tube. From the leader in the design,...
      $329.85 - $494.66
    • (0 reviews)
      # 409370854
      GMC Sierra 2011, Mild Steel Long Tube Exhaust Headers by PaceSetter®. Collector Outlet Diameter: 3". Emissions: EPA compliant. Header Style: Long Tube. From the leader in the design, manufacture and distribution of affordably priced,...
      $294.22 - $494.66
    • (0 reviews)
      # 409418822
      GMC Sierra 2011, 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. Manufactured using...
      $241.90 - $409.03
    • (0 reviews)
      # 221599951
      GMC Sierra 4.8L / 5.3L / 6.0L 2011, Cat4ward Stainless Steel Long Tube Exhaust Headers by JBA®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Emissions: Racing Only. Header Style: Long Tube. JBA long tube headers are...
      $504.25 - $613.67
    • (0 reviews)
      # 221600012
      GMC Sierra Denali 6.0L / 6.2L 2011, Cat4ward Stainless Steel Long Tube Exhaust Headers by JBA®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Emissions: Racing Only. Header Style: Long Tube. JBA long tube headers are...
      $504.25 - $613.67
    • (0 reviews)
      # 221599943
      GMC Sierra 1500 4.8L / 5.3L / 6.0L without EGR System 2011, Cat4ward Stainless Steel Shorty Exhaust Headers by JBA®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Header Material: Stainless...
      $469.90 - $693.15
    • (0 reviews)
      # 221600020
      GMC Sierra Denali 6.2L without EGR System 2011, 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....
      $469.90 - $693.15
    • (0 reviews)
      # 448317159
      GMC Sierra Denali 6.0L 2011, 304 SS Short Tube Exhaust Headers by Flowtech®. Collector Outlet Diameter: 2.5". Emissions: Racing Only. Header Style: Short Tube. Flowtech’s emissions-friendly headers are just the ticket for those who...
      $308.95 - $437.95
    • (0 reviews)
      # 448381179
      GMC Sierra Denali 6.0L / 6.2L 2011, Long Tube Exhaust Headers by Flowtech®. Primary Tubing Diameter: 1.875". Collector Outlet Diameter: 3". Emissions: Racing Only. Header Material: Mild Steel. Header Style: Long Tube. What happens when...
      $312.95 - $572.95
    • (0 reviews)
      # 781606781
      GMC Sierra 2011, Long Tube Exhaust Headers by Flowtech®. Primary Tubing Diameter: 1.875". Collector Outlet Diameter: 3". Emissions: Racing Only. Header Material: Mild Steel. Header Style: Long Tube. What happens when you're doing a...
      $312.95 - $572.95
    • (0 reviews)
      # 652336872
      GMC Sierra 2011, Short Tube Exhaust Headers by Flowtech®. Collector Outlet Diameter: 2.5". Emissions: Racing Only. Header Style: Short Tube. Flowtech’s emissions-friendly headers are just the ticket for those who want the best of both...
      $308.95 - $437.95
    • (0 reviews)
      # mpn1694485
      GMC Sierra SL / SLE / SLT / WT / XFE 5.3L without Air Injection 2011, TorqueTube™ Exhaust Manifold System by Banks®. Cast OEM exhaust manifolds just are too restrictive. Replacing them with Banks Torque Tubes will substantially reduce...
      Shorty style fits in stock engine bayImproves power, reduces fuel consumption
      $586.07
    • (0 reviews)
      # mpn358945626
      GMC Sierra 2011, SuperMAXX Stainless Steel Natural Long Tube Exhaust Headers by Dynatech®. Primary Tubing Diameter: 1.75". Collector Length: 4.25". Emissions: Racing Only. Finish: Natural. Color: Natural. Header Coating: Uncoated....
      $899.99
    • (0 reviews)
      # mpn4351213861
      GMC Sierra 2011, 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)
      # 448082602
      GMC Sierra 4.8L / 6.2L 2011, Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Emissions: Racing Only. This superior Patriot EXhaust product is just for you. Carefully designed for...
      $401.34 - $588.31
    • (0 reviews)
      # 447995584
      GMC Sierra Denali 6.2L 2011, Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Emissions: Racing Only. This superior Patriot EXhaust product is just for you. Carefully designed for...
      $401.34 - $588.31
    • (0 reviews)
      # 378622284
      GMC Sierra Denali 6.0L / 6.6L 2011, 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)
      # 378621754
      GMC Sierra Hybrid / SL / SLE / SLT / WT 2011, 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)
      # 378622313
      GMC Sierra Denali 6.0L / 6.2L 2011, 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...
      $255.91 - $556.88
    • (0 reviews)
      # 378621703
      GMC Sierra 4.8L / 5.3L / 6.0L / 6.2L 2011, 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...
      $255.91 - $556.88
    • (0 reviews)
      # 378621689
      GMC Sierra 4.8L / 5.3L / 6.0L / 6.2L 2011, 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)
      # 378622309
      GMC Sierra Denali 6.0L / 6.2L 2011, 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)
      # 372849509
      GMC Sierra 2011, Steel Long Tube 4-2-1 Tri-Y Exhaust Header Kit with Y-Pipes by Doug Thorley Headers®. Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Header Style: Long Tube. Doug's headers are designed to outflow your...
      $754.00 - $944.00
    • (0 reviews)
      # 308602103
      GMC Sierra 4.8L / 5.3L / 6.0L / 6.2L 2011, Steel Short Tube Exhaust Headers by Doug Thorley Headers®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Emissions: CARB compliant. Header Style: Short Tube. These shortie...
      $500.00 - $526.00
    • (0 reviews)
      # mpn3754521211
      GMC Sierra 2011, Performance Exhaust Manifold by High Tech Turbo®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability....
      Will help boost the performance of your vehicleMade to guarantee exceptional reliability
      $356.22
    • (0 reviews)
      # 466699105
      GMC Sierra 2011, 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)
      # 466681127
      GMC Sierra Denali 2011, 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 2011, 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)
      # mpn358507470
      GMC Sierra 6.0L Gas 2011, 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...
      Made of High Quality MaterialsBuilt to Last
      $31.61
    • (0 reviews)
      # mpn358587986
      GMC Sierra Denali 6.0L 2011, 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...
      High quality at an affordable priceExpertly made from premium materials
      $11.79
    • (0 reviews)
      # 245516022
      GMC Sierra 2011, 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)
      # 1022191078
      GMC Sierra 4.8L / 5.3L / 6.0L 2011, 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)
      # 1022410095
      GMC Sierra Denali 6.0L 2011, 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 2011, 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)
      # 652586865
      GMC Sierra 2011, 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 2011, 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)
      # 710980590
      GMC Sierra 2011, 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)
      # 1022150079
      GMC Sierra Denali 6.0L 2011, 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)
      # 1022646038
      GMC Sierra 4.8L / 5.3L / 6.0L 2011, 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)
      # 346356203
      GMC Sierra 2011, 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 2011, 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)
      # 262494849
      GMC Sierra 2011, 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. Whether you have an...
      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
      $11.19 - $28.79
    • (0 reviews)
      # mpn469957889
      GMC Sierra 2011, Exhaust Manifold Gasket by Merchant Automotive®.
      High quality at an affordable priceExpertly made from premium materials
      $46.85
    • (0 reviews)
      # 231283300
      GMC Sierra Denali 2011, 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
      $8.39 - $37.79
    • (0 reviews)
      # 231283252
      GMC Sierra 2011, 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
      $8.39 - $37.79
    • (0 reviews)
      # 652352838
      GMC Sierra 2011, 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 - $96.08
    • (0 reviews)
      # 652224842
      GMC Sierra 2500 HD Denali 2011, 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
      $53.17 - $96.08
    • (0 reviews)
      # 314958437
      GMC Sierra 4.8L / 5.3L / 6.0L / 6.2L 2011, 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)
      # 314959087
      GMC Sierra Denali 6.0L / 6.2L 2011, 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)
      # 231099707
      GMC Sierra Denali 2011, 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)
      # 231111822
      GMC Sierra 2011, 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 - $130.95
    • (0 reviews)
      # 231283297
      GMC Sierra Denali 6.0L / 6.2L 2011, 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...
      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)
      # 231283243
      GMC Sierra 2011, 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 manifold is...
      Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
      $62.90 - $107.80
    • (0 reviews)
      # 231099738
      GMC Sierra Denali 6.6L 2011, 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




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