2004 GMC Sierra Performance Headers

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    • (0 reviews)
      # 270984234
      GMC Sierra 2004, 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)
      # 231109988
      GMC Sierra 2004, 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
      $544.88 - $716.39
    • (0 reviews)
      # 82924271
      GMC Sierra 2500 HD 8.1L 2004, Stainless Steel Exhaust Headers by Stainless Works®. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $1,026.00
    • (0 reviews)
      # 96412888
      GMC Sierra With Air Conditioning With Power Steering With Tubular Exhaust Manifold System 2004, Standard Duty Headers by Hedman Hedders®. System Type: Shorty Style. After more than 50 years of manufacturing headers using mild steel...
      Made of High Quality 304 SSBuilt to Last
      $302.87 - $824.14
    • (0 reviews)
      # 270984231
      GMC Sierra without Air Injection 2004, TorqueTube™ Exhaust Manifold System by Banks®. Series: TorqueTube™. Cast OEM exhaust manifolds just are too restrictive. Replacing them with Banks Torque Tubes will substantially reduce...
      Shorty style fits in stock engine bayStainless steel for long service life
      $569.79
    • (1 review)
      # 266668836
      GMC Sierra 2004, Tuned Length Shorty Headers by BBK®. Primary Tubing Diameter: 1.75". Gain 15-20 dyno-proven horsepower at the rear wheels just by bolting on a set of BBK long tube, full length headers. These premium headers are...
      Dyno testing results show a typical increase of 15-20 horsepower at the rear wheelsDeveloped using CAD (Computer Aided Design) software
      $349.99 - $449.99
    • (0 reviews)
      # 231163762
      GMC Sierra Crew Cab / Extended Cab / Regular Cab 6.6L 2004, 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
      $510.00
    • (0 reviews)
      # 266668799
      GMC Sierra 4.8L / 5.3L / 6.0L / 6.6L / 8.1L 2004, Long Tube Headers by Flowtech®. 1.75" Diameter, 3" Collector Diameter. Include all mounting hardware Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 3". Carb Compliant:...
      Mandrel-formed Power Plenum collectors for low backpressureConstructed of .060 cold roll flash mild steel tubing
      $416.95 - $520.95
    • (0 reviews)
      # 266668844
      GMC Sierra 2004, 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". Flowtech’s emissions-friendly headers are...
      This is a 50-State Legal headerSturdy 16 gauge tubing
      $299.95 - $460.95
    • (0 reviews)
      # 204466662
      GMC Sierra RWD 2004, Super Competition™ Header by Hooker®. All necessary hardware included for a complete installation Collector Outlet Diameter: 3". Carb Compliant: No. System Type: Long Tube. Series: Super Competition™. This...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $509.95 - $796.95
    • (0 reviews)
      # 231031374
      GMC Sierra 1500 2004, SuperMAXX Stainless Steel Natural Long Tube Exhaust Header by Dynatech®. Includes: Gaskets, Bolts/Studs. Finish: Natural. Material: Stainless Steel. Series: SuperMAXX. Thickness: 3/8". SuperMAXX Stainless Long...
      Perfect, direct bolt-on fit+15 HP and 38.5 Ft. Lbs of Torque
      $799.99
    • (0 reviews)
      # 71990111
      GMC Sierra 3500 6.6L 2004, Pulse Flow Hi-Sil Moly Non-EGR Exhaust Manifold by ATS Diesel Performance®. ATS Multi-Piece Pulse Manifolds have pulse exhaust flow design, helping to spool up the turbocharger sooner with less exhaust...
      30% larger internal diameter in critical areasConstructed out of High Silica Moly for strength and promote thermal energy transfer
      $1,135.25
    • (0 reviews)
      # 231163749
      GMC Sierra 6.6L 2004, Manifold Kit by BD Diesel Performance®. 1 Piece This BD Diesel Performance 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...
      Replaces factory driver's side "pinched down" unitRestores exhaust flow and balances the V8 engine for smoother running
      $150.00
    • (0 reviews)
      # 221599867
      GMC Sierra 8.1L W/O EGR System 2004, Cat4ward Shorty Header by JBA®. Primary Tube Diameter: 1-3/4". Collector Diameter: 2.5". JBA shorty headers are one of the best performance upgrades available for any application. Hot Rod...
      Mandrel-bent stainless steel primary tubesPatented JBA Firecone® collector
      $605.63 - $705.91
    • (0 reviews)
      # 232531803
      GMC Sierra 6.6L 2004, 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 - $1,170.00
    • (0 reviews)
      # 232532454
      GMC Sierra 2004, Stainless Steel Exhaust Manifold by PPE®. PPE’s High-Flow Exhaust Manifolds and Up-Pipes have a 53% greater flow over stock and are 50 State emissions legal. PPE Manifolds are made from high-quality cast iron and...
      Cast Hi-Sil Moly iron high-flow manifold constructionSignificant reduction in exhaust back pressure
      $986.39 - $1,121.99
    • (0 reviews)
      # 66795398
      GMC Sierra 2004, HX40 Style Downpipe by Fleece Performance®. Size: 3.5"-4". HX40 Style Downpipe upgrade. Requires driver side transmission dipstick tube.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $222.60
    • (0 reviews)
      # 270984243
      GMC Sierra 4.8L / 5.3L 2004, Exhaust Headers by PaceSetter®. Material: Mild Steel. From the leader in the design, manufacture and distribution of affordably priced, quality made performance exhaust products. You can have increased...
      3/8” thick CNC-machined, port matched steel flanges1-7/8” or 1-3/4” 16-gauge mild steel, mandrel-bent primaries
      $228.02 - $455.30
    • (0 reviews)
      # 231110069
      GMC Sierra 2500 HD 2004, Exhaust Manifold by Merchant Automotive®.
      $99.95 - $299.54
    • (0 reviews)
      # 231031904
      GMC Sierra 2500 HD 1 Engine VIN Character 2004, MAX Flow Manifold Upgrade Kit by Merchant Automotive®. Series: MAX Flow.
      $147.00
    • (0 reviews)
      # 308599161
      GMC Sierra 4.8L / 5.3L 2004, Steel 4-2-1 Long-Tube Tri-Y Header with Y-Pipes by Doug Thorley Headers®. This complete header kit makes huge increases in power output of your LS based GM truck or SUV! Backed by over 50 years of...
      Street legal in all 50 states (most applications)Big power gains across the RPM range
      $729.00
    • (0 reviews)
      # 308602094
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Steel Shortie Header by Doug Thorley Headers®. These shortie headers are a fantastic way to work some extra horsepower out of your LS powered truck or SUV. A simple bolt-on installation will have...
      Street legal in all 50 states (most applications)Compact design - great for tight spaces
      $489.00 - $519.00
    • (0 reviews)
      # 285472970
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Aluminum Header Flange Kit by Moroso®. Material: Aluminum.
      $112.76
    • (0 reviews)
      # 56758084
      GMC Sierra 8.1L With Big Block Chevy Engine 2004, Exhaust Gasket Set by AFR®. 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...
      Designed to meet the needs of racers or street enthusiastsMade using the latest in modern technology and advanced processes
      $25.36
    • (0 reviews)
      # 266461443
      GMC Sierra With Chevy Big Block Engine 8.1L 2004, Header Stud Kit by Milodon. These thread rolled, thread starter nosed studs make installing headers a snap. The studs align the gasket and header flange allowing the header to slip...
      Painstakingly designed to meet your racing needsState-of-the-art manufacturing technology
      $93.95
    • (0 reviews)
      # 83880601
      GMC Sierra 6.6L 2004, 4-Bolt Plate Adapter by Diamond Eye®. Diameter: 4". This products is created for those who are not afraid of the power. It is fine-tuned to deliver unrestricted power and tested against competition for maximum...
      The finest quality at a great priceOE quality parts from top original equipment and aftermarket manufacturers
      $33.66 - $46.85
    • (0 reviews)
      # 89466776
      GMC Sierra 4.3L 2004, 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 2004, 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 2004, 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)
      # 231032067
      GMC Sierra 4.3L 2004, VMAX Manifold Spacer by Taylor Cable®. Series: VMAX. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing...
      Cutting Edge TechnologyDelivers Dramatic Performance For Late Model Stock Engines
      $283.25
    • (0 reviews)
      # 89466777
      GMC Sierra 4.3L 2004, 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)
      # 231030923
      GMC Sierra Gas 4.8L / 6.0L 2004, MLS Exhaust Header Gasket by Cometic Gasket®. Thickness: 0.030".
      Made of High Quality MaterialsBuilt to Last
      $31.61
    • (0 reviews)
      # 56734118
      GMC Sierra 5.3L 2004, 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 special "Dead Soft" Aluminum, which...
      Limited Lifetime Replacement WarrantyMade Of Dead Soft Aluminum
      $37.18
    • (0 reviews)
      # 56734147
      GMC Sierra 5.3L 2004, 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. Our XX Carbon gaskets are made...
      Perfect For Even Nitrous/Turbo/Blower MotorsWithstands Long Term Exposure To Over 2000 Degrees
      $26.70
    • (0 reviews)
      # 262494833
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, 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...
      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)
      # 262499983
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, 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...
      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 2500 HD 6.6L 2004, Exhaust Manifold Gasket by Merchant Automotive®.
      High quality at an affordable priceExpertly made from premium materials
      $38.00
    • (0 reviews)
      # 116558803
      GMC Sierra 2004, 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...
      Made of High Quality MaterialsThe best combination of steel layers and high-temp gasket materials
      $10.91 - $16.59
    • (0 reviews)
      # 231283074
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, 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...
      $8.15 - $36.69
    • (0 reviews)
      # 231110089
      GMC Sierra 2004, 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 latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.12 - $89.72
    • (0 reviews)
      # 213370564
      GMC Sierra 2500 HD / 3500 2004, Vibe-Lock Header Bolts 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...
      Vibration ProofNo Tightening Required
      $84.95 - $100.79
    • (0 reviews)
      # 231031908
      GMC Sierra 2500 HD 1 Engine VIN Character 2004, ARP Exhaust Manifold Up Pipe Bolts by Merchant Automotive®.
      $14.00
    • (0 reviews)
      # 231110148
      GMC Sierra 2004, 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 - $396.95
    • (0 reviews)
      # 231283154
      GMC Sierra 2004, 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
      $67.66 - $286.61
    • (0 reviews)
      # 231110197
      GMC Sierra 6.6L 2004, 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)
      # 62538111
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Exhaust Manifold to Cylinder Head Repair Clamp by Dorman®. Attachment Method: Bolt On. Easily repair exhaust leaks without removing broken manifold bolts with Dorman’s Exhaust Manifold to...
      Eliminates the need to remove cylinder head, saving you time and moneyReduces installation time
      $21.01 - $23.59
    • (0 reviews)
      # 231161479
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, GM Original Equipment™ Manifold Gasket by ACDelco®. 12 Months, 12,000 Miles (Parts Only) Series: GM Original Equipment™. Designed utilizing the latest technology, this product by ACDelco...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $9.16
    • (0 reviews)
      # 95031076
      GMC Sierra 2004, Exhaust Flange Gasket by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $7.50 - $9.29
    • (0 reviews)
      # 231283162
      GMC Sierra 2004, 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 fitEnsure reliable sealing performance
      $13.64 - $32.55
    • (1 review)
      # 90708977
      GMC Sierra 2004, Exhaust Manifold Gasket by Victor Reinz®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $13.92 - $29.45
    • (0 reviews)
      # 270984257
      GMC Sierra 2004, Exhaust Seal Ring by Victor Reinz®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $6.07 - $6.97
    • (0 reviews)
      # 231030922
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Exhaust Manifold Gasket by Mahle®.
      $21.83
    • (0 reviews)
      # 231109559
      GMC Sierra 2004, 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 - $13.51
    • (0 reviews)
      # 231108604
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. These exhaust flange hardware kits are made of steel with a black...
      Direct replacement for a proper fitBuilt to Last
      $5.15 - $5.22
    • (0 reviews)
      # 231162374
      GMC Sierra With Air Conditioning With Power Steering With Manual Transmission With Tubular Exhaust Manifold System 4.8L / 5.3L / 6.0L 2004, Mild Steel Black MAXX Coated Shorty Headers by Hedman Hedders®. 1 Pair. Includes: Bolts,...
      Made of High Quality MaterialsExtremely durable, protective SATIN BLACK ceramic-metallic coating
      $583.90
    • (0 reviews)
      # 264885025
      Universal High Lustre Silver Header Coating 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...
      Reduces Under Hood TemperaturesOffered on Headers only
      $334.18
    • (0 reviews)
      # 285472957
      Universal Chrome Plated Lake Pipe by Patriot Exhaust®. 1 Pair. Side Pipe made from Steel. Chrome Lake Pipes 63". Includes: Muffler, Brackets. 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
      $340.94
    • (0 reviews)
      # 285466057
      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)
      # 285466056
      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)
      # 285466062
      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




    2004 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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