2008 Honda Civic Si Performance Air Intake Systems

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    • (3 reviews)
      # 360285
      Honda Civic Si 2008, SP Series Cold Air Intake System by Injen®. HP Gain: +10.7 hp. Torque Gain: +11.2 lbs. x ft. Includes: X-1014 Filter. The SP Series Cold Air Intake System is made for the enthusiast who wants maximum horsepower...
      Delivers more oxygen to the combustion chamber by drawing in cooler airUses the patented MR Technology tuning process to ensure the air/fuel ratio is within optimum limits
      $288.96
    • (4 reviews)
      # 360568
      Honda Civic Si 2008, SP Series Short Ram Intake System by Injen®. HP Gain: +8.5 hp. Torque Gain: +7 lbs. x ft. Includes: X-1015 Filter. The Short Ram SP Series is a traditional, underhood air intake system that takes the place of...
      Improves airflow into the engineUses the patented MR Technology tuning process to ensure the air/fuel ratio is within optimum limits
      $259.90
    • (0 reviews)
      # 100728936
      Honda Civic Si 2008, Secret Weapon Air Intake System by Weapon-R®. Pipe Finish: Polished. Filter Cage Finish: Gunmetal. Foam Filter Finish: Black. The Secret Weapon Air Intake System uses patented technology to feed the engine 3...
      Patented technology increases airflow 3 times more than conventional systemsEach system is tuned to maximize engine performance output
      $228.65
    • (0 reviews)
      # 137974900
      Honda Civic Si 2008, Secret Weapon Neo-Ti Air Intake System by Weapon-R®. Pipe Finish: Neo Ti. Filter Cage Finish: Gunmetal. Foam Filter Finish: Black. The Secret Weapon Air Intake System uses patented technology to feed the engine...
      Patented technology increases airflow 3 times more than conventional systemsEach system is tuned to maximize engine performance output
      $331.50
    • (0 reviews)
      # 137975151
      Honda Civic Si 2008, Stealth Secret Weapon Air Intake System by Weapon-R®. Pipe Finish: Flat Black. Filter Cage Finish: Gunmetal. Foam Filter Finish: Black. Cooler air inlet temperatures mean more horsepower. This simple to install...
      Increased engine airflow for low costIncludes the revolutionary Secret Weapon Air filter
      $237.15
    • (1 review)
      # 116984514
      Honda Civic Si 2008, Polished Aluminum Short Ram Air Intake System by DC Sports®. DC Sports Air Intake Systems provide the best of both worlds in heat protection and improved breathability. Every kit includes a air filter that...
      $38.42 - $142.04
    • (0 reviews)
      # 80947847
      Honda Civic Si 2008, Performance Cold-Air Intake by Mishimoto®. Provide maximum, unrestricted airflow with the Mishimoto Performance Race Intake. Mishimoto pulled out all of the stops with this intake, featuring a 3" short-ram...
      Installs in under 30 minutesLarger diameter intake pipe for large turbochargers and more aggressive engine tunes
      $172.71 - $268.16
    • (0 reviews)
      # 38817455
      Honda Civic Si 2008, Cold Air Intake by Skunk2®. Skunk2 drew upon its experience and longstanding technical partnership with championship-winning Compass360 Racing when developing its all-new Cold-Air Intakes. The results are the...
      Includes a 3.5-inch internal diameter lower tubeSilicone connector
      $329.99
    • (0 reviews)
      # 78253265
      Honda Civic Si 2008, Cold Air Intake by Spec-D®. Tube Diameter: 3". Tube Material: Aluminum. This kit comes with aluminum intake pipes, cone air filter, mounting brackets, vacuum hoses, reducers, & all necessary hardware. Spec-D...
      Approximately increase 15-20 horsepowerProvide better throttle response & stop sucking in hot air from high temperature engine component
      $62.30
    • (1 review)
      # 81748412
      Honda Civic Si 2008, Attack Cold Air Stage 2 Intake System by Takeda®. Filter Series: Pro Dry S. HP Gain: +21 hp. TQ Gain: +23 lbs. x ft. This system is for the enthusiast who wants maximum performance from their sport compact. It...
      Custom designed for each applicationDelivers more oxygen to the combustion chamber by drawing in cooler, denser air
      $275.00
    • (1 review)
      # 81748415
      Honda Civic Si 2008, Retain Short Ram Stage 2 Intake System by Takeda®. Filter Series: Pro Dry S. HP Gain: +17 hp. TQ Gain: +16 lbs. x ft. Improve your car's performance and enhance the appearance of your engine bay with the Takeda...
      Custom designed for each applicationIncreases airflow, for gains in horsepower and torque
      $225.00
    • (0 reviews)
      # 103805525
      Honda Civic Si 2008, 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
      $54.95
    • (0 reviews)
      # 103805526
      Honda Civic Si 2008, 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
      $54.95
    • (0 reviews)
      # 70192954
      Honda Civic Si With FD2 Chassis 2008, Super Hybrid Filter by HKS®. 3 layered filter divides, collects intake air and smoothes air flow. It enables quick response that is required for sport filter. Newly developed Non-woven fabric...
      With high strength double frame, strong frame can be used for high horsepower.Shape of re-designed top frame enables smooth air flow.
      $30.63
    • (0 reviews)
      # 38817460
      Honda Civic Si K20Z3 Engine 2008, Pro Series™ Intake Manifolds by Skunk2®. Skunk2’s Pro Series Intake Manifold features a larger plenum and oversized runners when compared to the OEM version for maximum horsepower and torque...
      Increased mid-range and top-end HP and torque64mm throttle body bore
      $515.99
    • (0 reviews)
      # 93144715
      Honda Civic Si 2008, Silicone Air Intake Hose by Mishimoto®. The Mishimoto Silicone Intake Boot is made from a combination of high-grade silicone and heat-resistant embedded fibers for a high-quality replacement kit for your OEM...
      Direct OEM fitManufactured from 100% high-grade silicone and heat-resistant embedded fibers
      $114.00
    • (0 reviews)
      # 38815952
      Honda Civic Si 2008, K2B™ DBW Black Anodized Throttle Body Adapter by Skunk2®. Skunk2’s all-new K2B Throttle Body Adapter now offers H-series enthusiasts even more flexibility. Thanks to Skunk2’s 6061-T6 billet aluminum...
      Adapt any K-series intake manifold onto any H22A cylinder headAlso compatible with Skunk2 Pro Series Intake Manifolds
      $72.99
    • (0 reviews)
      # 59305480
      Honda Civic Si 2008, Throttle Body Adapter by Blackworks Racing®. The Blackworks Racing throttle body adapter allows the use of the RBC intake manifold while keeping the drive-by-cable.
      $45.00
    • (0 reviews)
      # 59305535
      Honda Civic Si 2008, Throttle Position Sensor by Blackworks Racing®. Blackworks Throttle Position Sensor replaces the OEM TPS Sensor without any modifications. The Honda dealer only sells the TPS sensor along with the Throttle Body...
      $53.30
    • (0 reviews)
      # 15839950
      Honda Civic Si 2008, Intake Hoses by HPS®. Replace your stock restrictive hose with this high temp reinforced silicone part. The HPS intake hose is sure to reduce heat soak, increase air flow, and what is the greatest thing, ensure...
      Improves air flow and reduces heat soakDelivers dyno-proven performance gains: +1.4 Whp, +1.2 Ft/lbs
      $114.62
    • (0 reviews)
      # 61618757
      Honda Civic Si 2008, Thermal Intake Manifold Gaskets by Torque Solution®. Thermal Intake Manifold Gaskets use a proprietary gasket material that lowers intake temps by reducing heat transfer from the head to the intake manifold....
      $43.38
    • (0 reviews)
      # 38817444
      Honda Civic Si 2008, Thermal Throttle Body Gasket by Skunk2®. Skunk2 Thermal Gaskets are designed as direct replacements for OEM gaskets. Skunk2's advanced high temperature thermal polymer material protects against heat soak and...
      Direct replacements for OEM intake manifold and throttle body gasketsProtects against heat soak and reduces the incoming air temperature before it reaches the cylinder head.
      $20.99
    • (0 reviews)
      # 61939936
      Honda Civic Si 2008, Thermal Throttle Body Gasket by Torque Solution®. Thermal Throttle Body Gasket use a proprietary gasket material that lowers intake temps by reducing heat transfer. These gaskets can be used to replace factory...
      $26.87
    • (0 reviews)
      # 61939940
      Honda Civic Si 2008, Throttle Body Spacer by Torque Solution®. Throttle Body Spacers are designed to increase Horsepower & Torque. By creating more intake manifold volume along with a better air fuel mixture you will make more...
      $75.93 - $77.60
    • (0 reviews)
      # 85590974
      Honda Civic Si 2008, Cabin Air Filter by UAC®. UAC’s line of filters includes Cabin Air Filter filters that are necessary for the proper function of an A/C System. They are produced at top tier facilities with strong quality...
      Helps maintain a desired temperature inside your carMade of durable materials
      $5.90
    • (0 reviews)
      # 120947517
      Honda Civic Si 2008, Manifold Absolute Pressure Sensor by Denso®. 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,...
      $75.00
    • (0 reviews)
      # 44702167
      Honda Civic Si Civic MUGEN Si 2008, MAP Sensor by Genuine®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $102.49
    • (0 reviews)
      # 85801922
      Honda Civic Si 2008, Mass Air Flow Sensor by Denso®. The air filter is the last line of defense against the harmful airborne abrasives that have been proven to wear out engines before their time. With OE-quality engineering and...
      Glass film coated sensing elements reduces contamination and improves reliabilityPlatinum wire sensing element responds quickly to changes in air flow
      $93.08
    • (0 reviews)
      # 88046544
      Honda Civic Si 2008, Manifold Absolute Pressure Sensor by Genuine®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $102.49
    • (0 reviews)
      # 35815094
      Honda Civic Si 2008, Intake Manifold Gasket Set by Beck Arnley®. Intake Manifold Gasket. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and...
      OE quality products from top original equipmentTop quality materials
      $10.89
    • (0 reviews)
      # 40582430
      Honda Civic Si 2008, Intake 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
      $8.10
    • (0 reviews)
      # 107660077
      Universal Apollo Flex Hose Flat Black Cold Air Intake System by K&N®. Replacement Filter # RC-5052. Air Filter Material: Cotton Gauze. Clamp Style: No Clamps Required. Filter Material: Cotton Gauze. Height: 4.875" (124 mm). Intake...
      Guaranteed to increase horsepower and improve accelerationIdeal for normally aspired engines up to 250 BHP and turbo engines up to 350 BHP
      $129.99 - $209.99
    • (0 reviews)
      # mpn1640291
      Universal Metal Raw Aluminum Cold Air Intake System by AEM®. Replacement Filter # 21-2059DK. Use with Pre-Filter # 1-4001. Tube Material: Metal. Tube Finish: Raw Aluminum. To deliver cooler air to the engine, this air intake system...
      Delivers more oxygen to the combustion chamber by drawing in cooler airCustom designed and engineered to deliver maximum power for each specific vehicle
      $319.99
    • (0 reviews)
      # mpn2531294
      Universal Jr. Intake Kit with SynthaFlow® Air Filter and Intake Tube by AIRAID®. Replacement Filter #: 700-420. Use with Pre-Filter #: 799-420. Air Filter Color: Red. Air Filter Material: Cotton Gauze & Non-woven Synthetic. Air...
      Increases airflow to the engineIncreases horsepower and torque, improves performance
      $150.86
    • (0 reviews)
      # mpn2531295
      Universal Jr. Intake Kit with SynthaMax® Air Filter and Intake Tube by AIRAID®. Replacement Filter #: 701-420. Use with Pre-Filter #: 799-420. Air Filter Color: Red. Air Filter Material: Non-woven Synthetic. Air Filter Outlet...
      Increases airflow to the engineIncreases horsepower and torque, improves performance
      $159.02
    • (0 reviews)
      # mpn611211179
      Universal 14" Chrome Air Cleaner by Demon Carburetion®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Demon...
      14" in diameter3" deep filter element
      $44.02
    • (0 reviews)
      # 125352732
      Universal Air Intake Kit by Spectre Performance®. Replacement Filter #: 8168. Air Filter Color: White. Air Filter Height: 2.625" (67 mm). Air Filter Material: Non-woven Synthetic. Intake Pipe Color: Polished. Intake Pipe Material:...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $50.24
    • (0 reviews)
      # 107662523
      Universal Air Filter for the UMP Off-Road Air Box by K&N®. Air Filter Height: 12.5" (318 mm). Air Filter Material: Cotton Gauze. Color: Red. Overall Height: 12.5" (318 mm). Style: Round. Top Finish: Black Powder Coated. Top Style:...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $158.99 - $161.99
    • (0 reviews)
      # 107662569
      Universal Carbon Fiber Air Box Large by K&N®. Filter Material: Cotton Gauze. Filter Re-Oiling Amount: 4.56 oz (135 ml). Height: 6.5" (165 mm). Width: 14" (356 mm). Protect your expensive racing engine and keep it running at peak...
      Attractive carbon fiber front designed for extra strengthCustom foam backing for a snug fit
      $533.99
    • (0 reviews)
      # 124911623
      Universal Covered Round Air Filter by K&N®. Replacement Filter # E-3600. Air Filter Height: 3.5" (89 mm). Air Filter Inside Diameter: 7" (178 mm). Air Filter Material: Cotton Gauze. Color: Polished. Filter Re-Oiling Amount: 1.28 oz...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $109.99
    • (0 reviews)
      # 107662648
      Universal Custom Air Cleaner Assembly by K&N®. Air Filter Material: Cotton Gauze. Color: Red. Filter Material: Cotton Gauze. Designed utilizing the latest technology, this Custom Air Cleaner Assembly by K&N features premium quality...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $62.99 - $256.99
    • (0 reviews)
      # 107662903
      Universal Custom Round Air Cleaner Assembly by K&N®. Air Filter Material: Cotton Gauze. Color: Red. Filter Material: Cotton Gauze. Includes: Mounting Hardware. Designed utilizing the latest technology, this Custom Air Cleaner...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $74.99 - $150.99
    • (0 reviews)
      # mpn1971294
      Universal Drag Racing Base Mount Scoop Filter by K&N®. Air Filter Large End Diameter: 11" (279 mm). Base Inside Diameter: 9" (229 mm). Base Outside Diameter: 11" (279 mm). Filter Material: Cotton Gauze. Height: 8.875" (225 mm). Top...
      Washable and reusableProtects engine from track debris
      $52.99
    • (0 reviews)
      # 107663025
      Universal Flow Control Custom Assembly by K&N®. Air Filter Material: Cotton Gauze. Color: Red. Filter Material: Cotton Gauze. Style: Round. Top Style: Plastic. Includes: Mounting Hardware. The K&N Flow Control System utilizes a...
      $197.99 - $257.99
    • (0 reviews)
      # 107662202
      Universal Heavy Duty Round Tapered Canister Air Filter by K&N®. Filter Material: Non-woven Synthetic. Top Style: Metal. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N...
      Improves engine airflowIncreases horsepower and acceleration
      $148.99 - $410.99
    • (0 reviews)
      # 124911635
      Universal Midget Series Custom Assembly by K&N®. Replacement Filter # RE-0970. Air Filter Height: 3" (76 mm). Air Filter Inside Diameter: 4.625" (117 mm). Air Filter Material: Cotton Gauze. Clamp Style: Mini. Color: Red. Filter...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $120.99
    • (0 reviews)
      # 107659998
      Universal Replacement Air Filter with Chrome Lid by K&N®. Filter Material: Cotton Gauze. Height: 4.5" (114 mm). Includes: 1 Air Filter. Designed utilizing the latest technology, this Replacement Air Filter by K&N features premium...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $74.99 - $97.99
    • (0 reviews)
      # 107662817
      Universal Round Custom Racing Assembly for 2BBL and 4BBL Carburetors by K&N®. Air Filter Material: Cotton Gauze. Color: Red. Filter Material: Cotton Gauze. Includes: Mounting Hardware. K&N's Universal Air Filters are designed and...
      Designed to increase horsepower and accelerationHundreds of sizes and shapes for most applications
      $49.99 - $95.99
    • (0 reviews)
      # 107662216
      Universal Velocity Stack Custom Air Cleaner Assembly by K&N®. Air Filter Material: Cotton Gauze. Color: Red. Filter Material: Cotton Gauze. Size: 9". Style: Velocity Stack. Top Finish: Chrome. Top Style: Open. Includes: Mounting...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $90.99 - $115.99
    • (0 reviews)
      # 107662394
      Universal XStream® Air Cleaner Assembly by K&N®. Air Filter Material: Cotton Gauze. Color: Red. Filter Material: Cotton Gauze. Includes: Mounting Hardware. Not only does the K&N XStream add filter area, it actually redirects...
      Washable and reusable air filterAir filter top adds filter area
      $123.99 - $224.99
    • (0 reviews)
      # 107663002
      Universal XStream® Drag Racing Base Mount Scoop Filters by K&N®. Air Filter Material: Cotton Gauze. Color: Black. Style: X-Stream. Top Style: X-Stream. Includes: Mounting Hardware. Protect your expensive racing engine and keep it...
      Attractive carbon fiber front designed for extra strengthCustom foam backing for a snug fit
      $137.99 - $143.99
    • (1 review)
      # 120884947
      Universal SynthaFlow® Round Tapered Air Filter by AIRAID®. Filter Material: Cotton Gauze & Non-Woven Synthetic. Quantity: Sold individually. Advanced air filtration technology, superior construction and the world's best warranty...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $36.62 - $85.58
    • (4 reviews)
      # 120885203
      Universal SynthaMax® Round Tapered Air Filter by AIRAID®. Filter Material: Non-woven Synthetic. Quantity: Sold individually. Advanced air filtration technology, superior construction and the world's best warranty make an AIRAID...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $44.78 - $93.74
    • (0 reviews)
      # mpn57019828
      Universal Aries Powersport Pro Dry S Panel Air Filter by aFe®. Dominate the street or the track with this superior high-performance air filter designed to bump up horsepower, performance and acceleration to the next level. It...
      aFe Aries AE 1 air filters are constructed out of 4-layers of synthetic media for maximum protection and requires no oils to cleanFilter housing is constructed out of pliabel urethane with a bump seal for a complete seal. Filters also include gaskets and require no glues or adhesives
      $34.95
    • (0 reviews)
      # 107149564
      Universal Magnum Flow IAF Pro 5R Air Filter by aFe®. With five layers of progressively finer mesh cotton gauze media between 100% polyurethane top and base, this high flow "oiled" conical performance filter provides excellent...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $56.95 - $99.95
    • (1 review)
      # 107149572
      Universal Magnum Flow IAF Pro Dry S Air Filter by aFe®. With three layers of progressively finer mesh synthetic media between 100% polyurethane top and base, this high flow, “oil-free” conical performance filter provides...
      Improves airflow and engine performanceProvides superior air filtration and engine protection
      $42.95 - $105.95
    • (1 review)
      # 107149725
      Universal Magnum Flow Pro 5R Air Filter by aFe®. This high flow Pro 5R air filters are constructed with 100% polyurethane on all sides and will out flow the stock paper filters for improved performance. Five layers of progressively...
      Improves airflow for better performance and accelerationPre-oiled, washable/reuseable air filter for long service life with life-time warranty
      $38.95 - $139.95
    • (1 review)
      # 107150017
      Universal Magnum Flow Pro 5R Round Air Filter with Expended Metal by aFe®. Outside Diameter: 14". Inside Diameter: 12". This high flow Pro 5R air filters are constructed with 100% polyurethane on all sides and will out flow the...
      Improves airflow for better performance and accelerationPre-oiled, washable/reuseable air filter for long service life with life-time warranty
      $62.95 - $73.95
    • (0 reviews)
      # 107150032
      Universal 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 of...
      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
      $46.95 - $94.95
    • (0 reviews)
      # 107150129
      Universal 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 in the stock...
      Improves airflow for better performance and accelerationPre-oiled, washable/reuseable air filter for long service life with life-time warranty
      $52.95 - $110.95




    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

    2008 Honda Civic Si Performance Air Intake Systems Reviews

    Average rating:  4.5  4.5 - 2 reviews
    4.3 of 5
    Good Intake
    My OEM filter was pretty bad before I changed to a SRI so I noticed significantly better acceleration and there is a Dramatic change in sound especially in VTec. Product was as described, delivered in good condition. I didn't like the hoops I had to jump through to get past the fraud management at CarID.com, shipping and billing address are the same and Mastercard approved the purchase but Carid.com held up the order for almost a week waiting to confirm that I was the person ordering it? Fraud management isn't to protect the customer, we have that with our credit cards. Its to protect the business against losses and its really really annoying. That being said they were polite about it, and once the product was in the mail, it was delivered fairly quickly to New Brunswick, Canada. The product loses points in installation for me due to the finicky nature of the design in that it has to be positioned just right to make sure the end of the filter doesn't rattle on the brake master cyl. If this happens to you, just check that the filter is slid onto the tube far enough. It is however one of the only intakes that you can put on an SI without the check engine light coming on, so kudos INJEN. Make sure during installation you install all of the clamps in a way that you can loosen and tighten them while the thing is in position on the engine in case you have to adjust after running for a little while.
    WPosted by Wendy (Moncton, NB) /
    2008 Honda Civic Si
    Was this review helpful for you? Yes2  people found this review helpful.
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