2004 GMC Sierra Performance Air Intake Systems

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    • (1 reviews)
      # 333747
      GMC Sierra 2004, 57 Series FIPK Generation II Air Intake System with Intake Pipe with Heat Shield by K&N®. Air Filter Material: Cotton Gauze. Intake Pipe Finish: Black. Intake Pipe Material: High-Density Polyethylene. This kit...
      Guaranteed to increase horsepower and improve accelerationCustom designed and engineered for each application
      $261.99 - $308.99
    • (1 reviews)
      # 324976
      GMC Sierra 2004, 77 Series High-Flow Performance Air Intake System by K&N®. Air Filter Material: Cotton Gauze. Clamp Style: Regular. Intake Pipe Finish: Polished. Intake Pipe Material: Aluminum. This intake kit is designed for the...
      Guaranteed to increase horsepower and improve accelerationCustom designed and engineered for each application
      $311.99 - $357.99
    • (0 reviews)
      # 44043242
      GMC Sierra 3500 2004, Evo Series Cold Rotomolded Induction System by Injen®. Includes: X-1068 Filter. Includes: Air Box. The Injen Evolution Air Induction System is a dyno-tuned intake system that's designed to enhance air flow for...
      Built-In Filter MinderDry Oil-Free Filter Media
      $299.95
    • (3 reviews)
      # 359749
      GMC Sierra 2004, PF Series Power-Flow Air Intake System by Injen®. Includes: X-1022 Filter. 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...
      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
    • (0 reviews)
      # 253104
      GMC Sierra 2004, Brute Force HD™ Diesel Metal Air Intake System by AEM®. Replacement Filter # 21-2259DK. Use with Pre-Filter # 1-4004. Includes: 5 Hose Clamps. Tube Material: Metal. Engineered to be durable and deliver the...
      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
    • (3 reviews)
      # 251480
      GMC Sierra 2004, Brute Force™ Metal Air Intake System by AEM®. Tube Material: Metal. These systems are designed for the larger engines typically found in trucks, SUVs and late model fuel-injected muscle cars. Extensive...
      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
    • (0 reviews)
      # 120881029
      GMC Sierra 2004, Cold Air Dam Intake System with SynthaFlow® Air Filter by AIRAID®. Replacement Filter #: 700-469. Use with Pre-Filter #: 799-469. Air Filter Color: Red. Air Filter Material: Cotton Gauze & Non-woven Synthetic. Air...
      Increases airflow to the engineIsolates the air filter from engine heat, enabling it to take in cooler, denser air
      $242.66 - $331.40
    • (0 reviews)
      # 55559843
      GMC Sierra 2004, Cold Air Dam Intake System with SynthaMax® Air Filter by AIRAID®. Use with Pre-Filter #: 799-469. Air Filter Material: Non-woven Synthetic. Air Filter Outlet Shape: Round. Quantity: Sold as a kit. The Cold Air Dam...
      Increases airflow to the engineIsolates the air filter from engine heat, enabling it to take in cooler, denser air
      $250.82 - $339.56
    • (0 reviews)
      # 433306
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Jr. Intake Kit with SynthaFlow® Air Filter and Intake Tube by AIRAID®. Replacement Filter #: 850-135. Air Filter Color: Red. Air Filter Material: Cotton Gauze & Non-woven Synthetic. Air Filter...
      Increases airflow to the engineIncreases horsepower and torque, improves performance
      $198.80
    • (0 reviews)
      # 433307
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Jr. Intake Kit with SynthaMax® Air Filter and Intake Tube by AIRAID®. Replacement Filter #: 851-135. Air Filter Color: Red. Air Filter Material: Non-woven Synthetic. Air Filter Outlet Shape:...
      Increases airflow to the engineIncreases horsepower and torque, improves performance
      $206.96
    • (1 reviews)
      # 120881045
      GMC Sierra 2004, MXP Series Cold Air Dam Intake System with SynthaFlow® Red Air Filter and Black Intake Tube by AIRAID®. Air Filter Color: Red. Air Filter Material: Cotton Gauze & Non-woven Synthetic. Air Filter Outlet Shape:...
      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 - $372.20
    • (0 reviews)
      # 120881048
      GMC Sierra 2004, MXP Series Cold Air Dam Intake System with SynthaMax® Air Filter by AIRAID®. Air Filter Material: Non-woven Synthetic. Intake Pipe Color: Black. Intake Pipe Material: High-Density Polyethylene. Quantity: Sold as a...
      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
      $370.16 - $380.36
    • (0 reviews)
      # 285309
      GMC Sierra 2004, Secret Weapon Air Intake System by Weapon-R®. Pipe Finish: Polished. Foam Filter Finish: Gunmetal/Black. The Secret Weapon Air Intake System uses patented technology to feed the engine 3 times as much air as other...
      Patented technology increases airflow 3 times more than conventional systemsEach system is tuned to maximize engine performance output
      $279.65 - $352.75
    • (0 reviews)
      # 925885
      GMC Sierra 2004, Magnum Force Stage 2 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...
      Improves airflow to your engineIsolates the air filter from engine heat, enabling it to take in cooler, denser air
      $325.00 - $387.00
    • (1 reviews)
      # 103808115
      GMC Sierra 2004, Magnum Force Stage 2 Si 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...
      Improves airflow to your enginerIsolates the air filter from engine heat, enabling it to take in cooler, denser air
      $375.00 - $387.00
    • (0 reviews)
      # 38183529
      GMC Sierra 4.8L / 5.3L / 6.0L without MAF Cartridge And Sensor with GMT800 Body 2004, Momentum GT Stage 2 Intake System by aFe®. Includes: Air Filter, 1-Piece Sealed Housing, CAD Roto-Molded Tube. Bringing you the next generation...
      Improves airflow to your engineIsolates the air filter from engine heat, enabling it to take in cooler, denser air
      $425.00
    • (0 reviews)
      # 134341026
      GMC Sierra LLY Engine 2004, Momentum HD Stage 2 Intake System by aFe®. Filter Series: Pro Dry S. Includes: Air Filter, CAD Roto-Molded Tube, 1-Piece Sealed Housing with Auxiliary Air Scoop, Premium Hardware. Bringing you the next...
      Improves airflow to your engineIsolates the air filter from engine heat, enabling it to take in cooler, denser air
      $425.00
    • (0 reviews)
      # 103808149
      GMC Sierra 2004, Momentum HD Stage 2 Si 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 sight...
      Improves airflow to your engineIsolates the air filter from engine heat, enabling it to take in cooler, denser air
      $425.00 - $437.00
    • (0 reviews)
      # 27107920
      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
    • (1 reviews)
      # 1387300
      GMC Sierra 2500 HD 8.1L 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...
      Increases intake airflowDyno proven gains in horsepower and torque
      $260.00
    • (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
    • (0 reviews)
      # 95649152
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Cold Air Intake by Spec-D®. Spec-D figuratively has their finger on the pulse of the automotive aftermarket, so they can bring you the latest style and best performing parts and accessories. No...
      Custom style lighting parts for a unique appearance and better visibilityHigh-tech engine parts for the most power and best performance
      $81.88
    • (1 reviews)
      # 12038783
      GMC Sierra 2004, Air Intake System by Spectre Performance®. Air Filter Material: Non-woven Synthetic. Intake Pipe Material: Aluminum. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $152.99
    • (4 reviews)
      # 102496918
      GMC Sierra 2004, Cold Air Intake System with Donaldson PowerCore® Filter 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
      $251.91 - $328.31
    • (0 reviews)
      # 102496929
      GMC Sierra 2500 HD 6.6L 2004, Cold Air Intake System with Primo Filter 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
      $262.13 - $303.02
    • (3 reviews)
      # 102496934
      GMC Sierra 2004, Cold Air Intake System with Pro 5 Filter 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 insulates the...
      Protective and insulating AirboxQuicker throttle response
      $213.79 - $296.63
    • (0 reviews)
      # 83229359
      GMC Sierra LLY Engine 2004, Black Turbo Inlet Manifold by S&B®. This intake elbow comes ready-to-install with pre-drilled and tapped NPT ports, along with 8 other locations to drill and tap your own ports along the backside of the...
      $195.00
    • (0 reviews)
      # 83230571
      GMC Sierra 2004, Cold Air Intake Kit with Cleanable Cotton Filter by S&B®. All intakes S&B produces is manufactured to the highest standards and submitted for CARB approval.
      $232.05 - $269.00
    • (0 reviews)
      # 141085876
      GMC Sierra 2004, Cold Air Intake Kit with Dry Disposable Filter by S&B®. All intakes S&B produces is manufactured to the highest standards and submitted for CARB approval.
      $269.00
    • (5 reviews)
      # 34628393
      GMC Sierra 2004, 33 Series Panel Air Filter by K&N®. Filter Material: Cotton Gauze. Includes: 1 Air Filter. K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We...
      Improves engine airflowIncreases horsepower and acceleration
      $48.99 - $60.99
    • (0 reviews)
      # 435718
      GMC Sierra 4.3L / 4.8L / 5.3L / 6.0L / 8.1L 2004, SynthaFlow® Panel Air Filter by AIRAID®. Filter Material: Cotton Gauze & Non-Woven Synthetic. Filter Re-Oiling Amount: 1.86 oz (55 ml). Quantity: Sold individually. Includes: 1 Air...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $59.06
    • (1 reviews)
      # 435719
      GMC Sierra 4.3L / 4.8L / 5.3L / 6.0L / 8.1L 2004, SynthaMax® Panel Red Air Filter by AIRAID®. Filter Material: Non-woven Synthetic. Quantity: Sold individually. Includes: 1 Air Filter. Advanced air filtration technology, superior...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $67.22
    • (0 reviews)
      # 923046
      GMC Sierra 6.6L 2004, Direct Fit IRF Pro 5R Oval Air Filter by aFe®. Constructed with 100% polyurethane on all four sides, this high flow, oiled OE replacement performance filter will out flow stock paper filter for improved...
      Improves airflow for better performance and accelerationPre-oiled, washable/reuseable air filter for long service life with life-time warranty
      $85.95
    • (0 reviews)
      # 919105
      GMC Sierra 2004, Magnum Flow Pro 5R Panel Air Filter by aFe®. This Pro 5R air filter provides performance filtration and maximum convenience. Constructed with 100% polyurethane on all sides, this high flow cotton gauze OE...
      Deep Cotton Pleats for Increased FlowFits In Factory Housing
      $62.95 - $73.95
    • (0 reviews)
      # 923047
      GMC Sierra 6.6L 2004, Magnum Flow Pro Dry S Air Filter by aFe®. This high flow Pro DRY S air filters are constructed with 100% polyurethane on all sides and will out flow the stock paper filters for improved performance. Two layers...
      Improves airflow for better performance and accelerationOil-free for easy quick servicing and yet washable/reuseable air filter for long service life with life-time warranty
      $85.95
    • (0 reviews)
      # 921962
      GMC Sierra 2004, Magnum Flow Pro Dry S Panel Air Filter by aFe®. Constructed with 100% polyurethane on all four sides, this high flow "oil-free" OE replacement performance filter will outflow stock paper filter for improved...
      For Improved Horsepower And TorqueLimited Lifetime Warranty
      $62.95 - $73.95
    • (0 reviews)
      # 923048
      GMC Sierra 6.6L 2004, Magnum Flow Pro Guard 7 Air Filter by aFe®. This Pro Guard 7 performance air filter outflows the factory intake by 44%. The “Inverted” design of this unique OE replacement filter fully utilized the space...
      Improves airflow for better performance and accelerationPre-oiled, washable/reuseable air filter for long service life with life-time warranty
      $92.95
    • (0 reviews)
      # 103804942
      GMC Sierra 6.6L 2004, Magnum Flow Pro Guard 7 Panel Air Filter by aFe®. Constructed with 100% polyurethane on all four sides, this high flow oiled OE replacement performance filter will outflow stock paper filter for improved...
      Improves airflow for better performance and accelerationPre-oiled, washable/reuseable air filter for long service life with life-time warranty
      $83.95
    • (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
    • (0 reviews)
      # 49226965
      GMC Sierra 2004, HPR™ Panel Air Filter by Spectre Performance®. Air Filter Color: Red. Filter Material: Non-woven Synthetic. Height: 1.625" (41 mm). Oil Amount: 85 ml (3 oz). Outside Length: 12.188" (310 mm). Outside Width:...
      High performance and high air flow filterFilter media is non-woven synthetic and pre-dyed
      $22.03
    • (0 reviews)
      # 85546741
      GMC Sierra 2004, Cotton Cleanable 8-ply Air Filter by S&B®. All filters S&B produces is manufactured to the highest standards and submitted for CARB approval.
      $42.22
    • (0 reviews)
      # 141085874
      GMC Sierra 2004, Dry Disposable Air Filter by S&B®. All filters S&B produces is manufactured to the highest standards and submitted for CARB approval.
      $42.22
    • (1 reviews)
      # 13555055
      GMC Sierra 2004, Powr-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
      $293.96
    • (0 reviews)
      # 78054987
      GMC Sierra 4.3L / 4.8L / 6.0L / 8.1L 2004, Mass Air Flow Sensor by Spectra Premium®. Material: Plastic/Aluminum. With Housing. Spectra Premium’s complete line of new Mass Air Flow Sensors, featuring Ceramic PC boards to ensure...
      Provide more consistent voltage to eliminate engine rough idle problemsPlatinum connector threads reduce the number of connection points for faster reaction to change
      $83.10
    • (0 reviews)
      # 124595439
      GMC Sierra 2004, Mass Airflow Sensor by Granatelli Motor Sports®. Mass air induction systems measure airflow with an electronic "hot-wire" type mass airflow sensor. The sensing element in the air intake provides an output voltage...
      $396.15 - $404.70
    • (0 reviews)
      # 1066620
      GMC Sierra 6.6L 2004, BladeRunner Turbo Inlet 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 BladeRunner intake...
      MDV technology forms multiple air paths for overall increased airflowIncreases horsepower and torque
      $295.00
    • (0 reviews)
      # 55186875
      GMC Sierra 2004, Power-Plus™ 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 throttle...
      Designed to increase airflow and improve horsepower15-20 dyno proven horsepower increase at the rear wheels depending on vehicle and application
      $369.99
    • (1 reviews)
      # 41033837
      GMC Sierra 4.8L / 5.3L / 6.0L 2004, Powr-Flo™ Throttle Body by JET®. JET Performance has created the new Powr-Flo throttle bodies for the most popular late model GM vehicles. The Powr-Flo increases air flow and improves throttle...
      Increased Air Flow And Improved Throttle ResponseMore Horsepower
      $329.96
    • (0 reviews)
      # 97278343
      GMC Sierra 4.8L / 6.0L 2004, Power™ Throttle Body Assembly by Professional Products®. Power Throttle Bodies are beautifully crafted from precision die castings. A die casting is a much higher quality casting than produced by...
      $189.16 - $221.88
    • (0 reviews)
      # 433519
      GMC Sierra 4.8L / 5.3L / 6.0L With Mechanical Cooling Fan 2004, Modular Intake Tube by AIRAID®. Finish: None. Intake Pipe Color: Black. Intake Pipe Material: High-Density Polyethylene. Material Used: Polyurethane. Quantity: Sold...
      Increases airflow to the engineIncreases horsepower and torque, improves performance
      $142.70
    • (0 reviews)
      # 66278227
      GMC Sierra LB7 Engine 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
      $162.23
    • (0 reviews)
      # 102504214
      GMC Sierra 2004, Cold 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...
      Increases horsepower and torqueImproves fuel mileage
      $105.65
    • (0 reviews)
      # 13545515
      GMC Sierra Flex / Gas With 5 Wire Mass Air Flow Sensor 2004, Inlet Air Temperature Relocator by JET®. JET Inlet Air Temperature Relocator Kit will relocate your vehicle's inlet air temperature sensor to a cooler location in the air...
      Relocates Inlet Air Temp Sensor To A Cooler Location.Provides A Cooler Air Charge
      $59.96
    • (0 reviews)
      # 102051695
      GMC Sierra 4.8L / 6.0L 2004, Lifter Valley Intake Manifold Gasket by Mr. Gasket®. Seals Lifter Valley Cover. You won't find a more perfect way to make your vehicle look better and drive faster than with the top-notch Mr. Gasket...
      Returns your vehicle to its pristine stateExceptional quality at a great price
      $10.15
    • (0 reviews)
      # 88242654
      GMC Sierra LLY Engine 2004, Intake Elbow by Sinister Diesel®. This kit is designed and engineered to out perform the competition. Comes with a Mandrel bent aluminum tube and CNC base plate designed to hold even the highest boost...
      Mandrel Bent Tubing1/8" NPT Bung Installed
      $249.00
    • (1 reviews)
      # 4306009
      GMC Sierra 4.3L 2004, EconoAid™ Throttle Body Spacer by AIRAID®. Finish: SL. Material Used: Aluminum. Thickness: 0.065" (2 mm). Quantity: Sold individually. The blades in the patented EconoAid™ Throttle Body Booster cause a...
      Enhances fuel atomization, which improves combustion and engine efficiencyIncreases low end torque and fuel economy
      $30.59
    • (0 reviews)
      # 66701431
      GMC Sierra 2004, PowerAid™ Throttle Body Spacer by AIRAID®. Thickness: 1" (25 mm). Quantity: Sold individually. Includes: Gaskets, Mounting Hardware. The patented Helix Bore in the PowerAid™ Throttle Body Spacer causes a...
      Enhances fuel atomization, which improves combustion and engine efficiencyIncreases low end torque and fuel economy
      $112.10 - $137.60
    • (1 reviews)
      # 924745
      GMC Sierra 4.8L / 5.3L / 6.0L / 8.1L 2004, Silver Bullet Throttle Body Spacer by aFe®. Billet Aluminum, Serrated/Helix Combination. What is inexpensive, takes only a few minutes to install, and results in more power and improved...
      Improves performanceImproves fuel economy
      $109.00
    • (0 reviews)
      # 13555070
      GMC Sierra 2004, Powr-Flo™ Throttle Body Spacer by JET®. JET Performance Powr-Flo Throttle Body Spacers were designed using the latest aerospace technology along with JET's 35 plus years of engineering fuel systems for some of...
      Increased Mid-Range Horsepower And TorqueImproved Throttle Response/Increased Fuel Economy
      $74.99 - $100.49
    • (0 reviews)
      # 12068506
      GMC Sierra With Single Port 2004, Power Plate Throttle Body Spacer by Spectre Performance®. CARB EO Number: D-629-5. Finish: Natural. Material Used: Aluminum. Package Quantity: 13. Thickness: 1" (25 mm). Includes: Gaskets, Mounting...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $71.99




    Guides & Articles

    • Performance Air Intake Systems
      Can an Air Intake System also Increase My Fuel Economy?
      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 Air Intake Systems
      The Real Cost of Your Car’s Cheap Factory Air Filter
      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 Air Intake Systems
      My Car is Brand New | Why Should I Change My Air Intake System?
      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 Air Intake Systems
      What are the Different Types of Air Intake Systems?
      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.
    • Replacement Air Intake Parts
      Why Does My Car Have a Plastic Intake Manifold?
      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 review
    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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