2004 GMC Sierra Performance Air Intake Systems

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    • Injen® Evo Series Cold Air Rotomolded Induction System
      (0 reviews)
      # 44043242
      GMC Sierra 2004, Evo Series Cold Air Rotomolded Induction System by Injen®. Inlcude X-1068 Air Filter. The Injen Evolution Air Induction System is a dyno-tuned intake system that's designed to enhance air flow for maximum...
      Built-In Filter MinderDry Oil-Free Filter Media
      $299.95
    • Injen® PF Series Air Intake System
      (3 reviews)
      # 359749
      GMC Sierra V8 2004, PF Series Air Intake System by Injen®. The PF Series Air Intake System is made for high performance cars, trucks and SUVs. It features a larger air filter and a larger diameter air intake tube to meet the...
      A large air filter and large diameter air intake tube to maximize air volumeUses the patented MR Technology tuning process to ensure the air/fuel ratio is within optimum limits
      $323.00 - $386.87
    • K&N® 57 Series FIPK Generation II Air Intake System
      (1 reviews)
      # 333747
      GMC Sierra 2004, 57 Series FIPK Generation II Air Intake System by K&N®. This kit improves airflow into your engine. It includes a K&N air filter and a custom designed air intake tube. The K&N filter increases the airflow and the...
      Guaranteed to increase horsepower and improve accelerationCustom designed and engineered for each application
      $261.99 - $308.99
    • K&N® 77 Series High-Flow Performance Polished Air Intake Kit
      (1 reviews)
      # 324976
      GMC Sierra 2004, 77 Series High-Flow Performance Air Intake Kit by K&N®. This intake kit is designed for the larger engines typically found in trucks and SUVs. It replaces the factory air intake system with a free flowing K&N air...
      Guaranteed to increase horsepower and improve accelerationCustom designed and engineered for each application
      $311.99 - $357.99
    • AEM® Brute Force HD Diesel Air Intake System
      (0 reviews)
      # 253104
      GMC Sierra 6.6L 2004, Brute Force HD Diesel Air Intake System by AEM®. Engineered to be durable and deliver the maximum in airflow and filtration to heavy-duty diesel engines. Helps diesel engines burn fuel more efficiently and may...
      Engineered for maximum airflow, filtration and durabilityThe oil-free, high-flow Dryflow™ air filter has over twice the filtration area as the standard Brute Force air filter
      $362.99 - $387.99
    • AEM® Brute Force Intake System
      (3 reviews)
      # 251480
      GMC Sierra 2004, Brute Force Intake System by AEM®. These systems are designed for the larger engines typically found in trucks, SUVs and late model fuel-injected muscle cars. Extensive dyno-tuning allows these engines to develop...
      Dyno-tuned air intake pipe constructed of mandrel-bent 6061 aluminum for smooth airflowEvery system includes the innovative, oil-free, high-flow AEM Dryflow™ air filter
      $279.99 - $322.99
    • AIRAID® Cold Air Dam Intake System
      (0 reviews)
      # 434695
      GMC Sierra 2004, Cold Air Dam Intake System by AIRAID®. The Cold Air Dam Intake System positions a large 360º AIRAID air filter with a huge air inlet in the stock location, but encloses it in a housing that seals against the hood,...
      Increases airflow to the engineIsolates the air filter from engine heat, enabling it to take in cooler, denser air
      $242.66 - $339.56
    • AIRAID® MXP Series Cold Air Dam Intake System
      (1 reviews)
      # 55559843
      GMC Sierra 2004, MXP Series Cold Air Dam Intake System by AIRAID®. The MXP Series air intake system positions a large 360º AIRAID air filter with a huge air inlet in the stock location, but encloses it in a roto-molded...
      Increases airflow to the engineMolded airbox isolates the air filter from engine heat, has strategically placed air inlets to allow only the coolest air into the box
      $362.00 - $380.36
    • AIRAID® Jr. Intake Kit
      (0 reviews)
      # 433424
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Jr. Intake Kit by AIRAID®. This is AIRAID's entry level performance intake kit. It improves airflow and performance while being economical and simple to install. The kit includes an AIRAID...
      Increases airflow to the engineIncreases horsepower and torque, improves performance
      $198.80 - $206.96
    • VOLANT® CAI Kit with Donaldson's® PowerCore™ Filter
      (3 reviews)
      # 346971
      GMC Sierra 2004, Cool Air Intake Kit with Donaldson's® PowerCore™ Filter and Airbox by Volant®. Cooler air is denser and packs in more oxygen for better combustion and more horsepower. This air intake system features an airbox...
      Protective and insulating AirboxQuicker throttle response
      $251.91 - $328.31
    • VOLANT® CAI Kit with Primo Filter
      (0 reviews)
      # 347220
      GMC Sierra 2500 HD / 3500 2004, Cool Air Intake Kit with Primo Filter and Airbox by Volant®. Cooler air is denser and packs in more oxygen for better combustion and more horsepower. This air intake system features an airbox that...
      Protective and insulating AirboxQuicker throttle response
      $238.78 - $303.02
    • VOLANT® CAI Kit with Pro 5 Filter
      (3 reviews)
      # 346509
      GMC Sierra 2004, Cool Air Intake Kit with Pro 5 Filter and Airbox by Volant®. Cooler air is denser and packs in more oxygen for better combustion and more horsepower. This air intake system features an airbox that completely...
      Protective and insulating AirboxQuicker throttle response
      $234.70 - $296.63
    • aFe® Stage 2 Cold Air Intake System
      (0 reviews)
      # 45604073
      GMC Sierra 4.8L / 5.3L 2004, Stage 2 Cold Air Intake System. by aFe®. The aFe Stage 2 Cold Air Intake System replaces your entire factory air intake system with a large high-flow aFe air filter, open element airbox/heat shield and...
      $325.00
    • aFe® Momentum GT Cold Air Intake System
      (0 reviews)
      # 38183529
      GMC Sierra Gas 4.8L / 5.3L / 6.0L GMT800 2004, Momentum GT Cold Air Intake System. by aFe®. Bringing you the next generation of intakes, the Momentum HD sealed air intake system is superior in every way: From the one-piece sealed...
      $425.00
    • aFe® Momentum HD Cold Air Intake System
      (0 reviews)
      # 38183517
      GMC Sierra Diesel 2004, Momentum HD Cold Air Intake System. by aFe®. Bringing you the next generation of intakes, the Momentum HD sealed air intake system is superior in every way: From the one-piece sealed housing with a built-in...
      $425.00 - $437.00
    • aFe® Stage 2 Cold Air Intake System
      (0 reviews)
      # 925885
      GMC Sierra 2004, Stage 2 Cold Air Intake System by aFe®. The aFe Stage 2 Cold Air Intake System replaces your entire factory air intake system with a large high-flow aFe air filter, open element airbox/heat shield and a smoothly...
      $325.00 - $387.00
    • aFe® Stage 2 Si Cold Air Intake System
      (1 reviews)
      # 926500
      GMC Sierra 2004, Stage 2 Si Cold Air Intake System by aFe®. The aFe Stage 2 Si Cold Air Intake System replaces your entire factory air intake system with a large high-flow aFe air filter, a totally enclosed airbox and a smoothly...
      $375.00 - $387.00
    • RBP® Air Intake
      (0 reviews)
      # 41956037
      GMC Sierra 2004, Air Intake with Donaldson's® PowerCore™ Filtration Technology by RBP®. Driving in dusty offroad conditions requires the best air intake technology that can be found. And here it is: The RBP Cool Air Intake with...
      Protective and Insulating AirboxQuicker Throttle Response
      $410.53 - $473.68
    • Spectre Performance® Air Intake Kit
      (0 reviews)
      # 81445838
      GMC Sierra 2004, Air Intake Kit with HPR™ Filter by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $152.99
    • Spectre Performance® Air Intake Kit
      (1 reviews)
      # 12038783
      GMC Sierra 2004, Air Intake Kit by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack! All products...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $149.99 - $152.99
    • CGS® Air Intake System
      (2 reviews)
      # 1387424
      GMC Sierra 2004, Air Intake System by CGS®. Get more power, improved performance and increased mileage in an attractive bolt-on package. With the CGS Air Intake System you get all this and a complete replacement lifetime warranty,...
      Increases intake airflowDyno proven gains in horsepower and torque
      $213.50 - $241.50
    • GREEN FILTER® Cold Air Intake System
      (0 reviews)
      # 3124317
      GMC Sierra 4.8L / 5.3L 2004, Cold Air Intake System by GREEN FILTER®. Improve power, increase mileage and save the cost of replacement filters by installing a Cold Air Intake System from Green Filter. The Cold Air Intake routes...
      Revised air box for improved flow, colder intake chargeWoven cotton, not cotton gauze for superior flow
      $175.99 - $285.99
    • Bully Dog® Stage 2 Rapid Flow Cold Air Intake System
      (0 reviews)
      # 59920727
      GMC Sierra 2004, Stage 2 Rapid Flow Cold Air Intake System by Bully Dog®. Enclosed. Molded XLPE. Replacement Filter # 224800. Use with Pre-Filter # 225201. Maximize the power and economy potential of your intake system with a Rapid...
      Increases airflow to engineAdds a throaty growl to the intake sound
      $339.99 - $369.99
    • S&B® Black Turbo Inlet Manifold
      (0 reviews)
      # 83229359
      GMC Sierra LLY Engine 2004, Black Turbo Inlet Manifold by S&B®.
      $195.00
    • S&B® Cold Air Intake Kit
      (0 reviews)
      # 83230571
      GMC Sierra 2004, Cold Air Intake Kit by S&B®. All intakes S&B produces is manufactured to the highest standards and submitted for CARB approval.
      $232.05 - $269.00
    • Spectre Performance® Panel HPR™ OE Replacement Air Filter
      (0 reviews)
      # 49225845
      GMC Sierra 2004, Panel HPR™ OE Replacement Air Filter by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $22.03
    • K&N® 33 Series Panel Air Filter
      (4 reviews)
      # 34628393
      GMC Sierra 2004, 33 Series Panel Air Filter by K&N®. A K&N 33 series OE replacement air filter is designed to increase horsepower and acceleration. These washable and reusable panel air filters are easy to install because they fit...
      Improves engine airflowIncreases horsepower and acceleration
      $48.99 - $60.99
    • AEM® DryFlow Panel Air Filter
      (0 reviews)
      # 345124
      GMC Sierra 2004, DryFlow Panel Air Filter by AEM®. AEM DryFlow Air Filters are washable synthetic air filters designed for an optimum combination of air flow, filtration, and performance. AEM DryFlow filters use an innovative high...
      Exceeds the engine’s normal airflow capacityEasy to clean – no oiling required
      $39.99
    • AIRAID® Air Filter
      (1 reviews)
      # 436268
      GMC Sierra 4.3L / 4.8L / 5.3L / 6.0L / 8.1L 2004, Red Air Filter by AIRAID®. Advanced air filtration technology, superior construction and the world's best warranty make an AIRAID air filter the best you can buy. It allows...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $59.06 - $67.22
    • aFe® Pro 5R Air Filter
      (0 reviews)
      # 919105
      GMC Sierra 2004, Pro 5R Air Filter by aFe®. The Pro 5R air filter provides increased airflow to your engine without sacrificing filtration ability. The increased airflow allows your engine to make more power, and have better...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $62.95 - $73.95
    • aFe® Pro DRY S Air Filter
      (0 reviews)
      # 921962
      GMC Sierra 2004, Pro DRY S Air Filter by aFe®. The Pro DRY S is the perfect combination of performance, protection and convenience. When you want increased airflow with superior filtration, but ease of maintenance is a high...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $62.95 - $73.95
    • aFe® Pro GUARD 7 Air Filter
      (0 reviews)
      # 927386
      GMC Sierra New Body 6.6L Turbocharged 2004, Pro GUARD 7 Air Filter by aFe®. When protecting your valuable engine is your primary concern, you need the Pro GUARD 7 air filter. It has the highest level of filtration efficiency of any...
      Highest level of filtration efficiency of any air filterIncreases airflow over stock paper air filter
      $83.95
    • aFe® Super Stock IRF Air Filter
      (0 reviews)
      # 923102
      GMC Sierra 2500 HD / 3500 6.6L Turbocharged 2004, Super Stock IRF Air Filter by aFe®. The Super Stock IRF Air Filter can increase airflow to your engine by 90%, with up to 65% greater dust holding capacity…without changing...
      Directly replaces factory air filterUp to 76% more filter surface area
      $85.95 - $92.95
    • GREEN FILTER® Factory Replacement Air Filter
      (0 reviews)
      # 56294490
      GMC Sierra 2004, Factory Replacement Air Filter by GREEN FILTER®. Replace your factory air cleaner filter element with a Green Filter oiled-cotton filter and never buy another filter as long as you own your vehicle. Enjoy superior...
      Cleanable, reusable filter element will outlast your carTraps particles as small as 5 microns
      $43.68
    • S&B® AFE Intake Replacement Air Filter
      (0 reviews)
      # 83230562
      GMC Sierra Diesel 2004, AFE Intake Replacement Air Filter by S&B®.
      $55.00
    • S&B® Cleanable Air Filter
      (0 reviews)
      # 85546741
      GMC Sierra 2004, Cleanable Air Filter by S&B®. All filters S&B produces is manufactured to the highest standards and submitted for CARB approval.
      $42.22
    • S&B® Cotton Air Filter
      (0 reviews)
      # 85546738
      GMC Sierra 2004, Cotton Air Filter by S&B®. Oil Color: Red. All filters S&B produces is manufactured to the highest standards and submitted for CARB approval.
      $55.00
    • S&B® Cotton K&N Intake Replacement Air Filter
      (0 reviews)
      # 83229354
      GMC Sierra 6.6L 2004, Cotton K&N Intake Replacement Air Filter by S&B®.
      $41.37
    • S&B® Dry Disposable Intake Replacement Air Filter
      (0 reviews)
      # 85546743
      GMC Sierra 2004, Dry Disposable Intake Replacement Air Filter by S&B®. All filters S&B produces is manufactured to the highest standards and submitted for CARB approval.
      $45.00
    • JET® Power-Flo™ Mass Air Flow Sensor
      (1 reviews)
      # 13555055
      GMC Sierra 2004, Power-Flo™ Mass Air Flow Sensor by JET®. JET Powr-Flo Mass Airflow Sensors will increase your engine's horsepower, low-end torque, and mileage by replacing the restrictive stock MAF sensor which limits your...
      Increase Horsepower And Low End TorqueImproved Mileage
      $302.21
    • aFe® BladeRunner Intake Manifold
      (0 reviews)
      # 1066620
      GMC Sierra 2500 HD / 3500 6.6L LLY 2004, BladeRunner Intake Manifold by aFe®. Increase airflow to your engine by up to 32% and gain up to 17 horsepower and 50 pound feet of torque just by changing your intake manifold. The aFe...
      $295.00
    • AIRAID® PowerAid™ Throttle Body Spacer
      (0 reviews)
      # 66701431
      GMC Sierra 2004, PowerAid™ Throttle Body Spacer by AIRAID®. The patented Helix Bore in the PowerAid™ Throttle Body Spacer causes a spinning action of the incoming air charge as it passes through the throttle body. This...
      Enhances fuel atomization, which improves combustion and engine efficiencyIncreases low end torque and fuel economy
      $112.10 - $137.60
    • Professional Products® Throttle Body Assembly
      (0 reviews)
      # 14156079
      GMC Sierra 2004, Throttle Body Assembly by Professional Products®. Power™ Throttle Body.
      $189.16 - $240.80
    • VOLANT® Ram Air Scoop
      (0 reviews)
      # 346133
      GMC Sierra 2004, Ram Air Scoop by Volant®. The Ram Air Scoop will improve the effectiveness of your Volant Cool Air Intake. One end connects to the Cool Airbox and the other is positioned to draw in cool air from outside the engine...
      Increases horsepower and torqueImproves fuel mileage
      $105.65
    • Fleece Performance® High Flow Intake Horn
      (0 reviews)
      # 66278227
      GMC Sierra Diesel LB7 2004, High Flow Intake Horn by Fleece Performance®. Increase your vehicle potential with this simple, but effective upgrade. Back-to-back dyno pulls showed an increase of 15hp with this Fleece Performance...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $112.23
    • Spectre Performance® Power Plate Throttle Body Spacer
      (0 reviews)
      # 12068506
      GMC Sierra 2004, Power Plate Throttle Body Spacer by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $71.99
    • Taylor Cable® Throttle Body Spacer
      (0 reviews)
      # 9409100
      GMC Sierra 2004, Throttle Body Spacer by Taylor Cable®. Helix Power Throttle Body Spacers increase airflow to improve cylinder filling, while the variable venturi aperture shape enhances turbulence for a more complete fuel burn....
      Precision machined from solid T-6061 billet aluminumUp to 22 hp gains
      $83.06 - $105.22
    • Volant® Vortice Throttle Body Spacer
      (0 reviews)
      # 58346717
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Vortice Throttle Body Spacer by Volant®. 3 Bolt Design. Make your intake air charge swirl its way into your cylinders. The cast fins on the Vortice spacer will induce a vortex as the air travels...
      $35.76
    • AIRAID® Modular Intake Tube
      (0 reviews)
      # 66701429
      GMC Sierra 2004, Modular Intake Tube by AIRAID®. More airflow to your engine will result in better throttle response and more horsepower and torque. This air intake tube can increase airflow to your engine by as much as 400 CFM! It...
      Increases airflow to the engineIncreases horsepower and torque, improves performance
      $142.70
    • Fleece Performance® Intake Air Heater Delete Plug
      (0 reviews)
      # 66278228
      GMC Sierra Diesel LB7 2004, Intake Air Heater Delete Plug by Fleece Performance®. The Fleece Performance Intake Air Heater Delete is a simple way to remove the air intake heater on your vehicle. Complete with a pre-drilled and...
      Increase Intake Air FlowCNC Machined Billet Aluminum
      $40.23
    • Merchant Automotive® Intake Pipe Seal
      (0 reviews)
      # 74449547
      GMC Sierra 2500 HD Duramax Engine LB7 Engine 2004, Intake Pipe Seal by Merchant Automotive®.
      $9.62
    • TRANS-DAPT® Swirl-Torque TBI Spacer
      (0 reviews)
      # 69678772
      GMC Sierra 4.3L 2004, Swirl-Torque TBI Spacer by TRANS-DAPT®, 1 Piece. Spacer made from Aluminum. 1996 GM 4.3L Truck Mult Port Fuel Injector Spacer. E.O. #: D-578-1.
      $54.78
    • AIRAID® EconoAid™ Throttle Body Spacer
      (1 reviews)
      # 4306009
      GMC Sierra 4.3L 2004, EconoAid™ Throttle Body Spacer by AIRAID®. The blades in the patented EconoAid™ Throttle Body Booster cause a spinning action of the incoming air charge as it passes through the throttle body. This...
      Enhances fuel atomization, which improves combustion and engine efficiencyIncreases low end torque and fuel economy
      $30.59
    • BBK® Power-Plus Series™ Twin Throttle Body
      (0 reviews)
      # 55186875
      GMC Sierra 2004, Power-Plus Series™ Twin Throttle Body by BBK®. 80mm Diameter. Increase airflow and add 15-20 horsepower at the rear wheels by bolting on this high-flow throttle body. It’s a direct replacement for your factory...
      Designed to increase airflow and improve horsepower15-20 dyno proven horsepower increase at the rear wheels depending on vehicle and application
      $369.99
    • Dorman® Upper Intake Manifold
      (0 reviews)
      # 16604525
      GMC Sierra 2004, Upper Intake Manifold by Dorman®. More like a complete service kit than a single part. Dorman’s Intake Manifold includes all the essential components for a full repair. Since this part is a direct replacement,...
      Re-engineered by Dorman with heat-resistant molding to reduce both warping and coolant leaks (where applicable)Some manifolds feature a reinforced aluminum coolant crossover to eliminate corrosion and vibration (where applicable)
      $63.89 - $255.78
    • FRAM® Extra Guard™ Flexible Panel Air Filter
      (0 reviews)
      # 83771364
      GMC Sierra 2004, Extra Guard™ Flexible Panel Air Filter by FRAM®. Most dirt and dust enters the engine through the air filter and FRAM Extra Guard is engineered to provide twice the air filtration compared to an original filter....
      Provides better air filtration for improved performancePrevents damaging particles from entering your engine
      $19.24
    • Hastings® Air Filter
      (0 reviews)
      # 21488659
      GMC Sierra 2004, Air Filter by Hastings®. Clean air is critical to the performance of your engine, so don’t trust just any filter. Hastings filters are tested according to SAE J726 test procedures, where they meet or exceed the...
      Filters out dirt and dust in the air preventing them from entering the engineHeavy duty construction for long service life
      $15.81 - $20.40
    • Crown® Air Filter
      (0 reviews)
      # 16689889
      GMC Sierra 2004, Air Filter by Crown®. Air Filter. An air filter does an important job of restricting dirt particles which could enter the engine with the airflow and damage its critical components. When your factory air filter...
      Excellent filtration for optimal engine performanceMeets or surpasses OEM specs
      $14.76
    • Full® Air Filter
      (0 reviews)
      # 8023134
      GMC Sierra Naturally Aspirated 2004, Air Filter by Full®. Note: with High Capacity Air Cleaner (RPO K47). If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $21.19
    • Interfil® Air Filter
      (0 reviews)
      # 54000270
      GMC Sierra 2004, Air Filter by Interfil®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, but before you waste...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $16.40 - $16.85




    Guides & Articles

    • Performance Parts
      We all know that achieving better fuel economy while driving puts money back in your pocket and does the environment a favor. But for those who are actively interested in squeezing the most out of every drop of gas, getting more miles per gallon can actually become a sport - especially if a vehicle has a manual transmission that can be upshifted earlier and put into neutral during downhill grades or when coasting to a stop sign.
    • Performance Parts
      In today's world, saving money wherever possible has become essential. But it's important not to lose sight of the fact that, sometimes, a product that costs more up front will save you more money over time. In our business, we've seen far too many consumers judge products solely on the basis of their initial cost, completely neglecting any long-term economy and benefits. When it comes to automobiles, "performance" air filters are a perfect example of this.
    • Performance Parts
      Aftermarket air intake systems have become one of the most popular engine modifications available for late model cars and trucks. An easy question to ask is why are these so popular? After all, didn't engineers who work for your vehicle manufacturer spend years developing the best engine components available? Since power and fuel economy are major selling points these days, it's hard to imagine car companies not doing everything they can to maximize horsepower, miles per gallon, or both.
    • Performance Parts
      There are many types of aftermarket air intake systems that range from simple and inexpensive to elaborate. In the scope of this article, we'll examine the different types of air intakes, what they do, and look at a few specific product examples of each. But in short, performance air intake setups increase airflow into your engine - boosting combustion and creating more horsepower and torque that you can actually feel. Their relatively low cost and easy installation (bolt-on in most cases) keeps them in popular demand by car enthusiasts that own everything from 1.5-liter turbo motors to big block V8 engines.
    • Performance Parts
      An intake manifold is an integrated assembly that sits atop the engine, consisting of a series of tubes which distribute fresh outside air to each and every cylinder. On V-shaped engine blocks, an intake manifold typically sits between the two cylinder banks while inline engines may feature a manifold to the side of the cylinder head. Intake manifolds serve as a mounting point for carburetors, throttle body assemblies, fuel injectors, thermostats, and more depending on vehicle manufacturer engineering preferences. Intake manifolds may also serve to route coolant through dedicated channels in order to remove heat from the engine. Because of their location and functionality, intake manifold assemblies are under constant stress from engine vacuum pressure as well as direct heat from coolant, cylinder combustion gasses, and the cylinder heads to which they are mounted.

    Popular Products

    2004 GMC Sierra Performance Air Intake Systems Reviews

    Average rating:  5  5 - 1 reviews
    4.8 of 5
    AEM Brute Force Air Intake 4.8L
    Great air intake...grabs more air and ups the pony power by enough to tell the difference.
    SPosted by Shaun (Worland, WY) /
    2004 GMC Sierra
    Was this review helpful for you? Yes8   people found this review helpful.
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