2012 GMC Sierra Performance Headers

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    • (0 reviews)
      # 231112044
      GMC Sierra 2012, Scavenger Series Headers by Flowmaster®. Sema Emissions Code: 1. High Temperature Ceramic Coating. Attachment Method: Stock Flange. 2 per Pack. Includes: Bolts and Studs. Primary Tubing Diameter: 1.63". Sema...
      Increases horsepower and torqueImproves engine efficiency and throttle response
      $599.00
    • (1 review)
      # 231112173
      GMC Sierra 2012, Perfromance Headers by Gibson®. Let your engine breathe and gain power and performance with Gibson Performance Headers. These headers will flow much more exhaust than your restrictive factory exhaust manifolds. The...
      Increases low and mid-range horsepower and torqueIncreases engine efficiency
      $428.84 - $591.20
    • (0 reviews)
      # 231163762
      GMC Sierra Crew Cab / Extended Cab / Regular Cab 6.6L 2012, Ductile Iron Manifold by aFe®. Material: Ductile Iron. Replace the exhaust manifold on your Dodge diesel with the BladeRunner stainless steel manifold. It was created to...
      Cast from 304 stainless steelThick wall construction and reinforced ribs for maximum durability
      $495.00
    • (0 reviews)
      # 46178735
      GMC Sierra 2012, Twisted Steel™ 409 SS 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...
      Optimized Tube Lengths Improve Flow and Performance100% hand MIG-welded construction ensures optimal strength and durability
      $795.00 - $1,595.00
    • (0 reviews)
      # 266668924
      GMC Sierra 4.8L / 5.3L / 6.0L / 6.2L / 6.6L 2012, Long Tube Headers by Flowtech®. Collector Outlet Diameter: 3". Carb Compliant: No. Material: Mild Steel. FLOWTECH headers are precision engineered and leak tested to get maximum...
      Mandrel-formed Power Plenum collectors for low backpressureConstructed of .060 cold roll flash mild steel tubing
      $302.95 - $555.95
    • (0 reviews)
      # 266668929
      GMC Sierra 4.8L / 5.3L / 6.0L / 6.2L / 6.6L 2012, Shorty Headers by Flowtech®. 1.625" Diameter, 2.5" Collector Diameter. Include all mounting hardware Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Carb...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $312.95 - $416.95
    • (0 reviews)
      # 231032074
      GMC Sierra 1500 4.8L / 5.3L / 6.0L / 6.2L 2012, SuperMAXX Stainless Steel Natural Long Tube Exhaust Header by Dynatech®. SuperMAXX Stainless Long Tube Headers are an excellent way to bolt on 15 hp and 38.5 Ft. Lbs. of Tq. to your...
      Perfect, direct bolt-on fit+15 HP and 38.5 Ft. Lbs of Torque
      $899.99
    • (0 reviews)
      # 221599951
      GMC Sierra 4.8L / 5.3L / 6.0L 2012, Cat4ward Full-Length Header by JBA®. Primary Tube Diameter: 1-5/8". Collector Diameter: 3". JBA long tube headers are the number one choice for maximum performance gains and high RPM efficiency....
      3/8' thick CNC laser-cut flangesPatented JBA Firecone® merged collector
      $479.33 - $607.59
    • (0 reviews)
      # 221599943
      GMC Sierra 1500 4.8L / 5.3L / 6.0L W/O EGR System 2012, Cat4ward Shorty Header by JBA®. Primary Tube Diameter: 1-5/8". Collector Diameter: 2.5". JBA shorty headers are one of the best performance upgrades available for any...
      Mandrel-bent stainless steel primary tubesPatented JBA Firecone® collector
      $440.92 - $595.75
    • (0 reviews)
      # 232534152
      GMC Sierra 6.6L 2012, Race Stainless Steel Exhaust Manifold by PPE®. PPE’s Manifold and Up-Pipes are designed to maximize power and flow characteristics. The Up-Pipe bellows are high flow, internally sleeved and aircraft grade...
      Cast Hi-Sil Moly iron high-flow manifold constructionSignificant reduction in exhaust back pressures
      $986.39
    • (0 reviews)
      # 58838054
      GMC Sierra 2500 HD / 3500 HD 8 Engine VIN Character 2012, Stainless Steel Exhaust Manifold with Up-Pipes by PPE®. PPE’s High-Flow Exhaust Manifolds and Up-Pipes have a 53% greater flow over stock and are 50 State emissions legal....
      Cast Hi-Sil Moly iron high-flow manifold constructionSignificant reduction in exhaust back pressure
      $1,349.99
    • (0 reviews)
      # 231111989
      GMC Sierra 2012, Exhaust Headers by PaceSetter®. Carb Compliant: No. Material: Mild Steel. From the leader in the design, manufacture and distribution of affordably priced, quality made performance exhaust products. You can have...
      3/8” thick CNC-machined, port matched steel flanges1-7/8” or 1-3/4” 16-gauge mild steel, mandrel-bent primaries
      $219.13 - $443.87
    • (0 reviews)
      # 89466776
      GMC Sierra 4.3L 2012, Graph-Flex™ Exhaust Header Gasket by Taylor Cable®. Series: Graph-Flex™. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel....
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $23.04
    • (0 reviews)
      # 231108639
      GMC Sierra 2012, HTR Collector Gasket by Taylor Cable®. Series: HTR. 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
      $17.10 - $21.54
    • (0 reviews)
      # 89466775
      GMC Sierra 4.3L 2012, Seal-4-Good™ Exhaust Header Gasket by Taylor Cable®. Series: Seal-4-Good™. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel....
      Multi-layered for excellent conformability and sealSeals even imperfect flanges
      $33.74
    • (0 reviews)
      # 89466777
      GMC Sierra 4.3L 2012, XX Carbon™ Exhaust Header Gasket by Taylor Cable®. Series: XX Carbon™. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel. This...
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $20.92
    • (0 reviews)
      # 245516022
      GMC Sierra 2012, Header Gasket by Howe Racing Enterprises®. 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...
      Built to match your exact requirementsHigh quality you can rely on
      $11.68
    • (0 reviews)
      # 56734118
      GMC Sierra 1500 SL / SLE / SLT / WT / XFE 5.3L 2012, Seal-4-Good Header Gasket by Percy's High Performance®. Port Style: Round, Port Size: 1.7". The Percy's Seal-4-Good Reusable Flange Gaskets are multi-layered and made from a...
      Limited Lifetime Replacement WarrantyMade Of Dead Soft Aluminum
      $37.18
    • (0 reviews)
      # 56734147
      GMC Sierra 1500 SL / SLE / SLT / WT / XFE 5.3L 2012, XX Carbon Header Gasket by Percy's High Performance®. Port Style: Round, Port Size: 1.7". These gaskets are designed to give the performance you expect at a price you can afford....
      Perfect For Even Nitrous/Turbo/Blower MotorsWithstands Long Term Exposure To Over 2000 Degrees
      $34.08
    • (0 reviews)
      # 262494849
      GMC Sierra 2012, 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,...
      Remflex exhaust gaskets come in a standard 1/8" thickness and are designed to crush 50%. This allows them to fill gaps in the flange surface up to 1/16"100% flexible graphite construction means Remflex gaskets are good for up to 3,000 degrees F - far exceeding that of any vehicle's exhaust system temperature
      $23.83 - $31.98
    • (0 reviews)
      # 262494863
      GMC Sierra 2012, Manifold/Header Gasket by Remflex®. Set of 2. 1-7/8" D Round Port. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed...
      Remflex exhaust gaskets come in a standard 1/8" thickness and are designed to crush 50%. This allows them to fill gaps in the flange surface up to 1/16"100% flexible graphite construction means Remflex gaskets are good for up to 3,000 degrees F - far exceeding that of any vehicle's exhaust system temperature
      $27.99
    • (0 reviews)
      # 74449575
      GMC Sierra Duramax Engine 2012, Exhaust Manifold Gasket by Merchant Automotive®.
      High quality at an affordable priceExpertly made from premium materials
      $38.00
    • (0 reviews)
      # 231283252
      GMC Sierra 2012, Header Bolt Set by Mr. Gasket®. 12 Pieces. 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...
      $8.15 - $36.69
    • (0 reviews)
      # 231112062
      GMC Sierra 1500 WT Gas 2012, Vibe-Lock Header Bolt Kit by Taylor Cable®. 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
      $18.12 - $19.30
    • (0 reviews)
      # 231112129
      GMC Sierra 2012, Exhaust Manifold by Dorman®. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and hardware for a complete installation. Since this part is a direct replacement, the exact...
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $66.95 - $122.61
    • (0 reviews)
      # 231283259
      GMC Sierra 2012, Exhaust Manifold by ATP®. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed off of the original parts specifications, to ensure it will install and perform...
      Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
      $70.88 - $122.38
    • (0 reviews)
      # 231111565
      GMC Sierra Diesel 2012, 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 Manifold...
      Eliminates the need to remove cylinder head, saving you time and moneyReduces installation time
      $28.10 - $47.82
    • (0 reviews)
      # 266668932
      GMC Sierra 2012, GM Original Equipment™ Exhaust Manifold Gasket by ACDelco®. 12 Months, 12,000 Miles (Parts Only) Series: GM Original Equipment™. Designed utilizing the latest technology, this product by ACDelco features...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $13.51
    • (0 reviews)
      # 231031872
      GMC Sierra 4.3L 2012, Exhaust Manifold Gasket Set by Victor Reinz®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair,...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $20.52
    • (0 reviews)
      # 231112193
      GMC Sierra 2012, Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to provide you...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $10.40 - $10.92
    • (0 reviews)
      # mpn358949929
      Universal Chrome Plated Lake Pipe by Patriot Exhaust®. 1 Pair. Includes: Muffler, Brackets. Side Pipe made from Steel. Chrome Lake Pipes 63". Finish: Chrome Plated. Show quality chrome Lake Pipe 4 kits connect to headers or stock...
      The look of an expensive tuned header side pipe at a fraction of the costSide pipes come with built-in six sided louvered cored mufflers which absorb sound not horsepower
      $339.21
    • (0 reviews)
      # 231014066
      Universal Aluminized Steel Header Collector Ball Flange Kit by Flowmaster®. Material: Aluminized Steel. The Collector Ball Flange takes the place of the messy three-bolt connections and ensures a leak-free and connection. The ball...
      Replaces Messy 3-Bolt Flange ConnectionEnsures Leak Free Connection
      $99.00
    • (1 review)
      # 231014034
      Universal Scavenger Series Y-Collector by Flowmaster®. Series: Scavenger Series. The patented Scavenger Y-Collector is based on the principles of Pulse Technology. They are designed to harmonize the exhaust pulses from two...
      Race Proven TechnologyPatented Design that Creates Low Pressure Zones for Better Scavenging
      $47.55 - $54.01
    • (0 reviews)
      # 231014205
      Universal Header Merge Collector by MagnaFlow®. These headers are a cost effective an easy way to boost your vehicle's horsepower and torque in almost nothing flat. They are made of mandrel bent stainless steel with a ceramic...
      Easy and a cost effective solution to add horsepower and torque to your enginePrecisely designed for quality, fit and function
      $265.16 - $333.13
    • (0 reviews)
      # mpn1295593899
      Universal 304 SS 2-Bolt Manifold Flange by Stainless Works®. Primary Tubing Diameter: 3.02". Material: 304 SS. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $34.00
    • (0 reviews)
      # mpn584304642
      Universal Afterburner™ Thrust Toobs Headers Extension by Flowtech®. 3" Inlet, 12" Long, 3-Bolt, Package contains one pair Series: Afterburner™. Afterburner Thrust Toobs used with open headers are designed to complete the system...
      Expertly crafted from premium materials3-Bolt, 3” ID, 12” Long
      $38.44
    • (0 reviews)
      # 266461787
      Universal Reducer by Flowtech®. Flowtech understands that when you purchase a set of headers, a muffler, or even an entire exhaust system, you want to know that you’re getting everything you need to complete the installation.
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $19.42 - $128.95
    • (0 reviews)
      # 231013939
      Universal High-Velocity Merge Collector by Dynatech®. 1 Piece. Dynatech Merge Collectors are an excellent way to maximize the potential of your exhaust system. When your exhaust system requires the maximum horsepower, a set of...
      Maximizes the potential of the exhaust systemMade of High Quality Materials
      $199.99
    • (0 reviews)
      # 231013907
      Universal High-flow Slip On Collector by Dynatech®. 1 Piece. Material: Mild Steel. Dynatech High-Flow Slip On Collectors are designed with maximum exhaust flow in mind. With a High-Flow long transition area, these collectors...
      Collectors come race-ready right out of the boxAvailable in a wide variety of primary tube and collector outlet sizes
      $89.99 - $149.99
    • (0 reviews)
      # 231013966
      Universal Long Tube Pavement Late Model Headers by Dynatech®. These Long Tube Pavement Late Model Headers are designed for use with Standard Chevy engines. The Long Tube design promotes excellent torque throughout the RPM range.
      35” Equal Length primaries for maximum Torque and HorsepowerValve covers are removable with headers installed
      $105.99 - $109.99
    • (0 reviews)
      # 231013881
      Universal Mild Steel 80 Degree Elbow by Dynatech®. 1 Piece. Finish: Natural. Material: Mild Steel. Specifically designed for use with Dynatech Dirt Late Model Headers. This is an excellent way to get the exhaust routed inside the...
      Delivers a huge boost in performance and an awesome soundRigorously dyno-tested to provide maximum horsepower and torque gains
      $27.99
    • (0 reviews)
      # 255773604
      Universal Collector 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
      $11.97 - $13.70
    • (0 reviews)
      # 231014256
      Universal 4-1 Formed Collectors 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 expectations. This product is built...
      Expertly crafted from premium materialsQuality design and workmanship
      $36.51 - $64.99
    • (0 reviews)
      # 231014349
      Universal Collector Reducers by Patriot Exhaust®. Patriot Exhaust collector reducers are zinc plated to minimize corrosion while providing a weldable finish. All collector reducer kits come with two reducers, gaskets and flange...
      Available in a wide variety of diameters and lengthsZinc plated to minimize corrosion
      $25.04 - $30.69
    • (0 reviews)
      # mpn358950043
      Universal Dome Style Reducer by Patriot Exhaust®. Series: Dome Style. This superior Patriot EXhaust product is just for you. Carefully designed for maximum performance, is will more than just meet your needs and expectations. This...
      Expertly crafted from premium materialsQuality design and workmanship
      $24.91
    • (0 reviews)
      # 231014286
      Universal Exhaust Collector Flange Kit by Patriot Exhaust®. Flange kits include two flanges, gaskets and flange bolts. All round collector flanges include two block off plates and two flanges. 4-gauge flange thickness. Flange kits...
      Available in a variety of diametersWelding Required: Yes
      $12.58 - $16.87
    • (0 reviews)
      # 266461866
      Universal 2 into 1 Y-Pipe Collector by Schoenfeld Headers®. 1 Piece. 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $101.03 - $112.26
    • (0 reviews)
      # 266461864
      Universal 3 Bolt Header Collector Flange 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
      $5.86 - $6.24
    • (0 reviews)
      # 266461865
      Universal Collector Insert Reducer 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
      $20.77
    • (0 reviews)
      # 266461872
      Universal Slip Over Collector 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $44.67 - $221.08
    • (1 review)
      # mpn753352383
      Universal Header Reducer by BTP®. Each. This premium quality part by BTP helps your exhaust system to perform at its full efficiency as well as provide your vehicle with a more aggressive and powerful sound. This part is made from...
      Engineered to make your exhaust system perform at its peakProvides a powerful and aggressive sound
      $10.25
    • (0 reviews)
      # 266461831
      Universal Ball-Socket Exhaust Flange Kit by Hedman Hedders®. Ball & Socket Header Flange Kits allow you to convert a gasket style, or race style header collector to a gasket-free Ball-Style Collector. Hedman’s gasketless, Ball &...
      Available in 304 Stainless Steel, Aluminized Steel, Mild SteelEasy to Install
      $26.79 - $152.89
    • (0 reviews)
      # 266461804
      Universal Header Reducers by Hedman Hedders®. Hedman reducers (exhaust system adapters) weld on to your exhaust system, so you can easily bolt up your Hedman Hedders to the vehicle’s exhaust.
      Available in Mild Steel, Aluminized Steel or Stainless SteelAll necessary hardware included
      $19.43 - $51.27
    • (0 reviews)
      # 266461856
      Universal Husler Race Hedder Reducers by Hedman Hedders®. Many of Hedman's newer hedder models utilize a ball & socket style collector. If your Hedman Hedders have thisstyle of collector they do not require a gasket.
      Made of High Quality MaterialsBuilt to Last
      $25.02 - $28.68
    • (0 reviews)
      # 266461860
      Universal Mild Steel Header Collectors by Hedman Hedders®. This Hedman Hedders product is just the option for you in case you want to get the most out of your auto. It is made from first-rate materials to provide the highest level...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $45.51 - $205.38
    • (0 reviews)
      # 171670489
      Universal Ball and Socket Connector by Kooks®. 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, this product by Kooks will last a...
      Made of high Quality MaterialsDesigned to match rigorous quality standards
      $58.16 - $257.36
    • (0 reviews)
      # 171670471
      Universal Collector by Kooks®. With 9-10" long body. Plus 2" for slip on stub section. 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...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $118.93 - $434.57
    • (0 reviews)
      # 171670709
      Universal Collector Weld-On Reducer Cone by Kooks®. 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, this product by Kooks will...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $16.40 - $53.30
    • (0 reviews)
      # 142860869
      Universal Terminator™ Reducer Street Hookup by Flowtech®. 3-Bolt. Terminator fully-welded reducers/street hookups are designed to be used behind three-bolt design collectors and help make any header installation complete.
      Fully-welded constructionDurable 16 gauge construction
      $39.48
    • (0 reviews)
      # mpn1673775281
      Universal Exhaust Manifold Flange by Vibrant Performance®. Thickness: 0.375". Thickness: 0.375". Do you want to get more power out of your vehicle? Then this superior Vibrant Performance product is just for you. Carefully designed...
      Made of High Quality MaterialsAvailable in different sizes
      $146.21




    2012 GMC Sierra Performance Headers Reviews

    Average rating:  4.5  4.5 - 39 reviews
    5 of 5
    CanAmMex® 00747-212 - Thunderbolt™ Hi-Polished Single Rolled Angled Oval Tip
    These appear to be of very good quality, good welds.
    JPosted by John (Enfield, CT) / February 24, 2016
    Was this review helpful for you? Yes
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