2004 GMC Sierra Exhaust Manifolds & Components

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    • (0 reviews)
      # 16499321
      GMC Sierra 2004, Exhaust Manifold by Dorman®. Finish: Natural. Material: Cast Iron. Flange Bolt Hole Quantity: 0. Flange Stud Hole Quantity: 3. With Installation Hardware. Package Type: Box. More like a complete kit than a single...
      Cast iron or stainless tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $58.95 - $396.95
    • (0 reviews)
      # 23401822
      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)
      # 131308121
      GMC Sierra Diesel 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. Package Type: Box. Easily repair exhaust leaks without removing broken manifold bolts with Dorman’s...
      Eliminates the need to remove cylinder head, saving you time and moneyReduces installation time
      $28.68 - $29.58
    • (0 reviews)
      # 71583235
      GMC Sierra 4.8L / 6.0L 2004, 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $13.36
    • (0 reviews)
      # 95031073
      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
      $7.30 - $9.29
    • (0 reviews)
      # 89466776
      GMC Sierra 4.3L 2004, Graph-Flex™ Exhaust Header Gaskets by Taylor Cable®. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight on almost...
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $23.04
    • (0 reviews)
      # 89466765
      GMC Sierra 4.3L 2004, HTR Oval Collector Gasket (1.63"x1.50") 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $21.54
    • (0 reviews)
      # 89565287
      GMC Sierra 4.8L / 6.0L 2004, HTR Round Collector Gasket 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
      $17.10
    • (0 reviews)
      # 89466775
      GMC Sierra 4.3L 2004, Seal-4-Good™ Exhaust Header Gaskets by Taylor Cable®. 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 and...
      Multi-layered for excellent conformability and sealSeals even imperfect flanges
      $33.74
    • (0 reviews)
      # 89466777
      GMC Sierra 4.3L 2004, XX Carbon™ Exhaust Header Gaskets by Taylor Cable®. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight on almost...
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $20.92
    • (0 reviews)
      # 18919769
      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
      $13.71 - $32.68
    • (1 review)
      # 90709015
      GMC Sierra 2004, Exhaust Manifold Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. 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...
      $14.36 - $29.45
    • (0 reviews)
      # 24142725
      GMC Sierra 2004, Exhaust Seal Ring by Victor Reinz®. OEM Standard. Type 'E'. 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...
      $6.22 - $7.16
    • (0 reviews)
      # 81866973
      GMC Sierra 2004, Exhaust 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...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $10.06 - $13.51
    • (0 reviews)
      # 62538134
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Exhaust Manifold Hardware Kit by Dorman®. Bolt Grade: 10.9. Dog Point Fastener: No. Pilot Point Fastener: No. Thread Size: #1: M8-1.25, #2: M8-1.25. Length: 1.18". Dorman manifold bolt and spring...
      Direct replacement for a proper fitBuilt to Last
      $8.58 - $8.70
    • (0 reviews)
      # 1281814
      GMC Sierra 2004, Scavenger Series 4-1 One-Piece Style Ceramic Coated Short Tube Elite Headers by Flowmaster®. Sema Emissions Code: 1. High Temperature Ceramic Coating. Attachment Method: Stock Flange. 2 per Pack. Inlet Port Shape:...
      Increases horsepower and torqueImproves engine efficiency and throttle response
      $599.00
    • (1 review)
      # 3734445
      GMC Sierra 2004, Performance Header 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
      $476.49 - $656.89
    • (0 reviews)
      # 46328292
      GMC Sierra W/O Air Injection 2004, TorqueTube™ Exhaust Manifold System by Banks®. Cast OEM exhaust manifolds just are too restrictive. Replacing them with Banks Torque Tubes will substantially reduce the backpressure where it...
      Shorty style fits in stock engine bayStainless steel for long service life
      $586.07
    • (1 review)
      # 118688481
      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 - $469.99
    • (0 reviews)
      # 82924271
      GMC Sierra 2500 HD 8.1L 2004, Stainless Steel Headers by Stainless Works®. Collector Diameter: 3". Connection Point: Factory Connect. This superior product is made from high-grade stainless steel to ensure excellent quality and...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $927.00
    • (0 reviews)
      # 139171545
      GMC Sierra RWD (Rear Wheel Drive) 2004, Super Competition™ Long Tube Header by Hooker®. Series: Super Competition™. System Type: Long Tube Header. Collector Outlet Diameter: 3". CARB Compliant: No. Port Shape: Same As Port. All...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $496.95 - $776.95
    • (0 reviews)
      # 61593876
      GMC Sierra 1500 2004, SuperMAXX Stainless Steel Long Tube Headers by Dynatech®. 1 Pair. Header Style: Full-length. Header Material: Stainless steel. Header Finish: Natural. Primary Tube Diameter: 1 3/4". Collector Diameter: 2.50"....
      Perfect, direct bolt-on fit+15 HP and 38.5 Ft. Lbs of Torque
      $899.99
    • (0 reviews)
      # 78252198
      GMC Sierra 2004, Exhaust Header by Spec-D®. Make whatever you drive run and sound like a high-performance machine with a Spec-D Exhaust System. Constructed from durable, never rust, stainless steel, this Header comes with all...
      Increase up to 12-15 hp1.5" primary tune / 2.5" collector
      $240.30
    • (0 reviews)
      # 106413096
      GMC Sierra 6.6L 2004, Exhaust Manifold by BD Diesel Performance®. Balanced exhaust flow for more power and lower EGT’s! The factory driver’s side exhaust manifold on the 2001-2010 Chevy 6.6L Duramax engine is pinched down to...
      $150.00
    • (0 reviews)
      # 142866666
      GMC Sierra V8 2004, Mild Steel Long Tube Headers by Flowtech®. Header Material: Mild Steel. FLOWTECH headers are precision engineered and leak tested to get maximum performance and fuel economy from your engine. Each header is...
      Mandrel-formed Power Plenum collectors for low backpressureConstructed of .060 cold roll flash mild steel tubing
      $405.95 - $507.95
    • (0 reviews)
      # 100092580
      GMC Sierra Gas 4.8L / 5.3L without Exhaust Gas Recirculation 2004, Mild Steel Shorty Headers by Flowtech®. CARB Compliant: Yes. System Type: Short Tube. Header Material: Mild Steel. Flowtech’s emissions-friendly headers are just...
      This is a 50-State Legal headerSturdy 16 gauge tubing
      $291.95 - $448.95
    • (0 reviews)
      # 71990111
      GMC Sierra 3500 6.6L 2004, Pulse Flow Hi-Sil Moly Non-EGR Exhaust Manifold by ATS Diesel Performance®. ATS Pulse Flow Exhaust Manifolds for the 6.6L Duramax offer far less restriction than stock manifolds and up-pipes. Channel...
      30% larger internal diameter in critical areasConstructed out of High Silica Moly for strength and promote thermal energy transfer
      $1,135.25
    • (0 reviews)
      # 136722133
      GMC Sierra Gas 4.8L / 5.3L 2004, Mild Steel Long Tube Headers by PaceSetter®. CARB Compliant: No. From the leader in the design, manufacture and distribution of affordably priced, quality made performance exhaust products. You can...
      3/8” thick CNC-machined, port matched steel flanges1-7/8” or 1-3/4” 16-gauge mild steel, mandrel-bent primaries
      $177.66 - $450.98
    • (0 reviews)
      # 185892477
      GMC Sierra 4.8L / 5.3L 2004, Mild Steel Shorty Exhaust Headers by PaceSetter®. CARB Compliant: Yes. Header Material: Mild Steel. Collector Diameter: 2.5". Primary Tubing Diameter: 1.5". 1 pair. If you want to get the most out of...
      Machined flanges and 16-gauge primaries, just like race long tubesPollution control hook ups
      $228.02 - $369.34
    • (0 reviews)
      # 97233067
      GMC Sierra Gas 4.8L / 5.3L / 6.0L With Power Steering Box With Auto Transmission Column With Auto Transmission Floor With Manual Transmission Floor With E.G.R. System / without E.G.R. System With Air Conditioning (A/C) With 2WD...
      Made of High Quality MaterialsBuilt to Last
      $295.87 - $562.80
    • (0 reviews)
      # 97233064
      GMC Sierra 2500 HD / 3500 Gas With Power Steering Box With Auto Transmission Column With Auto Transmission Floor With Manual Transmission Floor without Manual Transmission Column With Air Conditioning (A/C) With Late Chassis With...
      Made of High Quality 304 SSBuilt to Last
      $546.37 - $789.14
    • (0 reviews)
      # 74449606
      GMC Sierra 2500 HD Duramax Engine LLY Engine 2 Engine VIN code Manufactured after June 2004, Exhaust Manifold- LH by Merchant Automotive®. GM has introduced a new manifold that will flow better then the original OEM unit. Reduced...
      $99.95
    • (0 reviews)
      # 74449494
      GMC Sierra 2500 HD Duramax Engine LB7 Engine 1 Engine VIN code 2004, Exhaust Manifold - RH by Merchant Automotive®. Direct replacement manifold for the right side of the engine. Use to replace if you have a crack in your manifold...
      $299.54
    • (0 reviews)
      # 74449431
      GMC Sierra 2500 HD Duramax Engine LB7 Engine 1 Engine VIN code 2004, MAX Flow Left Side Manifold Upgrade Kit by Merchant Automotive®. Replace your factory manifold with this low cost alternative. Increases exhaust flow through the...
      $147.20
    • (0 reviews)
      # 89466829
      GMC Sierra 4.3L 2004, VMAX Manifold Spacer 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...
      Cutting Edge TechnologyDelivers Dramatic Performance For Late Model Stock Engines
      $283.25
    • (0 reviews)
      # 83880601
      GMC Sierra 6.6L 2004, Exhaust Adapter Plate by Diamond Eye®. 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 performance....
      The finest quality at a great priceOE quality parts from top original equipment and aftermarket manufacturers
      $33.66 - $46.85
    • (0 reviews)
      # 61592973
      GMC Sierra Gas 4.8L / 6.0L 2004, 0.030" MLS Exhaust Head Gasket by Cometic Gasket®. Compressed Thickness: 0.030". Port Style: LS1. Cometic MLS Gaskets are comprised of multiple layers of stainless steel providing a even load across...
      Made of High Quality MaterialsBuilt to Last
      $31.61
    • (0 reviews)
      # 74449452
      GMC Sierra 2500 HD Duramax Engine LB7 Engine 1 Engine VIN code 2004, ARP Exhaust Manifold Up Pipe Bolts by Merchant Automotive®.
      $14.24
    • (0 reviews)
      # 74449575
      GMC Sierra 2500 HD Duramax Engine 2004, Exhaust Manifold Gasket by Merchant Automotive®.
      $38.00
    • (0 reviews)
      # 116558803
      GMC Sierra 2004, 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
      $10.91 - $16.59
    • (0 reviews)
      # 102217283
      GMC Sierra 4.8L / 6.0L 2004, Exhaust Header Bolt 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,...
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $8.15 - $36.69
    • (0 reviews)
      # 97208233
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Standard Duty Black MAXX Coated Headers by Hedman Hedders®. System Type: Shorty. Primary Tubing Diameter: 1.625". 1 Pair. Includes Bolts, Studs, Gaskets, Reducers. Header made from Steel. The...
      Made of High Quality MaterialsExtremely durable, protective SATIN BLACK ceramic-metallic coating
      $578.90
    • (0 reviews)
      # 118569966
      Universal Exhaust Collector Gasket by Spectre Performance®. Gasket Material: Compressed Ceramic Fiber. Package Quantity: 2. Includes: 2 Gaskets. Rooted in racing, Spectre Performance designs and builds every product with the same...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $5.10 - $10.55
    • (0 reviews)
      # mpn21030416
      Universal Exhaust Gasket Material by Spectre Performance®. Gasket Material: Compressed Ceramic Fiber. Package Quantity: 1. Includes: 1 Gasket. Rooted in racing, Spectre Performance designs and builds every product with the same...
      $11.11
    • (0 reviews)
      # 174547979
      Universal Bolt 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 OE-quality parts and...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $1.55 - $3.40
    • (0 reviews)
      # 128881085
      Universal Manifold Stud by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest quality. This AP Exhaust...
      Made from first-rate materialsEnsures outstanding durability
      $0.55 - $1.75
    • (0 reviews)
      # 139245596
      Universal Super Competition™ Weld-Up Race Kit by Hooker®. Series: Super Competition™. Hooker Weld-up kits work great for racers who need to build custom headers when a specific fit tuned Super Competition header is not...
      Mandrel Bent 1 pc. PrimariesSS NHRA Contingency ID Header Tags
      $270.95 - $529.95
    • (0 reviews)
      # mpn358949929
      Universal 3 1/2" Chrome Lake Pipes by Patriot Exhaust®, Sold as a Pair. Includes Muffler, Brackets. Side Pipe made from Steel. Chrome Lake Pipes 63". Show quality chrome Lake Pipe 4 kits connect to headers or stock exhaust system...
      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)
      # 129719012
      Universal Mild Steel 80 Degree Elbow by Dynatech®. 1 Piece. Specifically designed for use with Dynatech Dirt Late Model Headers. This is an excellent way to get the exhaust routed inside the sheet metal on the driver’s side.
      Delivers a huge boost in performance and an awesome soundRigorously dyno-tested to provide maximum horsepower and torque gains
      $27.99
    • (0 reviews)
      # 142860834
      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
      $18.95 - $124.95
    • (0 reviews)
      # 468746
      Universal Aluminized Steel Header Collector Ball Flange Kit by Flowmaster®, Sold in Pairs. The Collector Ball Flange takes the place of the messy three-bolt connections and ensures a leak-free and connection. The ball type...
      Replaces Messy 3-Bolt Flange ConnectionEnsures Leak Free Connection
      $99.00
    • (1 review)
      # 469150
      Universal Scavenger Series Y-Collector by Flowmaster®. The patented Scavenger Y-Collector is based on the principles of Pulse Technology. They are designed to harmonize the exhaust pulses from two cylinders that are at the opposite...
      Race Proven TechnologyPatented Design that Creates Low Pressure Zones for Better Scavenging
      $46.99 - $70.30
    • (0 reviews)
      # 118615405
      Universal Stainless Steel Merge Collectors by Vibrant Performance®. Vibrant Performance offers a comprehensive, high quality and affordably priced range of T304 Stainless Steel Merge Collectors to help free up maximum horsepower...
      Help free up maximum horsepowerEasy To Use
      $71.93 - $267.54
    • (0 reviews)
      # 139245570
      Universal Collector Extension by Hooker®. These 18" long extensions enable the racer to adjust his torque curve to suit track conditions.
      All Required Nuts, Gaskets And Bolts IncludedEasy Installation
      $60.85 - $89.27
    • (0 reviews)
      # 139245562
      Universal Header Reducer by Hooker®. Just pick the reducer size that matches the diameter of the header collector. Bolt it to the collector ring, and weld on the tailpipe. If you have a header without the collector ring, use...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $27.35 - $109.95
    • (0 reviews)
      # 129719033
      Universal High-flow Slip On Collector by Dynatech®. 1 Piece. Dynatech High-Flow Slip On Collectors are designed with maximum exhaust flow in mind. With a High-Flow long transition area, these collectors maximize flow to help you...
      Collectors come race-ready right out of the boxAvailable in a wide variety of primary tube and collector outlet sizes
      $69.99 - $129.99
    • (0 reviews)
      # 129719044
      Universal Mild Steel 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...
      Maximizes the potential of the exhaust systemMade of High Quality Materials
      $269.99 - $289.99
    • (0 reviews)
      # mpn584304642
      Universal Afterburner™ Thrust Toobs Headers Extension (3" ID, 12" Long) by Flowtech®. 12" Length. 3-Bolt. Pair. Afterburner Thrust Toobs used with open headers are designed to complete the system and squeeze out extra horsepower...
      Expertly crafted from premium materials3-Bolt, 3” ID, 12” Long
      $37.50
    • (0 reviews)
      # 91560810
      Universal 4-1 Formed Collectors by Patriot Exhaust®, 1 Pair. Collector made from Mild Steel. 16-gauge tubing. Patriot Exhaust's formed collectors provide a smooth transition point for superior exhaust scavenging. Choose from a wide...
      $36.51 - $59.76




    2004 GMC Sierra Exhaust Manifolds 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) /
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    2004 GMC Sierra Models
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