1991 BMW 3-Series Performance Air Intake Systems

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    • (0 reviews)
      # 336379
      BMW 3-Series 1991, 57i Series Generation I Flex Hose Black Air Intake System with Intake Pipe by K&N®. Air Filter Material: Cotton Gauze. Clamp Style: Regular. Intake Pipe Finish: Black. Intake Pipe Material: Flex Hose. This...
      Guaranteed to increase horsepowerSpecifically designed for each application
      $100.99 - $115.99
    • (0 reviews)
      # 73905014
      BMW 325i E36 1991, 57i Series Generation II High-Density Polyethylene Black Air Intake System with Intake Pipe by K&N®. Replacement Filter # RC-70031. Air Filter Height: 6.344" (161 mm). Air Filter Material: Cotton Gauze. Clamp...
      Guaranteed to increase horsepower and improve accelerationCustom designed and engineered for each application
      $177.99
    • (0 reviews)
      # 318516
      BMW 3-Series 1991, 33 Series Panel Air Filter by K&N®. Filter Material: Cotton Gauze. Top Style: Open. Includes: 1 Air Filter. K&N's replacement air filters are designed to increase horsepower and acceleration while providing...
      Improves engine airflowIncreases horsepower and acceleration
      $43.99 - $67.99
    • (0 reviews)
      # 917457
      BMW 3-Series 1991, 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
      $49.95 - $73.95
    • (0 reviews)
      # 920310
      BMW 325i 1991, 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
      $49.95
    • (0 reviews)
      # 111384912
      BMW 318i / M3 1991, Air Flow Meter Adapter Kit with Dragon Air Filter by Weapon-R®. Includes: Air Flow Meter Adaptor, Filter, Couplers, Clamps, Bracket, Small Filter Cleaner Solution. Installing this kit will increase the airflow...
      Increased engine airflow for low costIncludes the distinctive Dragon Air filter
      $92.65 - $98.00
    • (1 review)
      # 286244
      BMW 318i / M3 1991, Air Flow Meter Adapter Kit with Secret Weapon Air Filter by Weapon-R®. Includes: Air Flow Meter Adaptor, Filter, Coupler, 2 Clamps, Bracket Kit, Small Filter Cleaner Solution. Installing this kit will increase...
      Increased engine airflow for low costIncludes the revolutionary Secret Weapon Air filter
      $92.65
    • (0 reviews)
      # 4495458
      BMW 3-Series 1991, Mass Air Flow Adapter by Weapon-R®. This universal adapter will let you attach that air cleaner of your choice to the inlet of your airflow sensor. Made from rugged plastic, it bolts to flat inlet of the sensor,...
      Rugged plastic adapterHardware included
      $13.00
    • (0 reviews)
      # 12062483
      BMW 318i / 318is 1991, 3" Mass Airflow Sensor Adapter by Spectre Performance®. Color: Polished. Inlet Diameter: 3" (76 mm). Inside Diameter: 2.75" (70 mm). Material Used: Aluminum. Maximum Diameter: 3.375 mm. Minimum Diameter:...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $14.94
    • (0 reviews)
      # 35825064
      BMW 3-Series 1991, Air Filter by Beck Arnley®. Primary. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in...
      It is recommended to use factory hardware for installationOE quality products from top original equipment
      $12.57 - $14.91
    • (0 reviews)
      # 85803942
      BMW 3-Series 1991, Air Filter, FTF Air Filter 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...
      High airflow rate improves performance and fuel economySuperior dust holding capacity increases filter life
      $9.00 - $9.44
    • (0 reviews)
      # 145999872
      BMW 318i / 318is / 325i / 325is / 325iX 1991, Extra Guard™ Flexible Panel Air Filter by FRAM®. Size: 9.94" (L) x 5.88" (W) x 2.25" (H). Do you feel shaking or shuddering when you engage the clutch; hear grinding noise when you...
      Quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $9.24
    • (0 reviews)
      # 21464849
      BMW 3-Series 1991, Panel Air Element 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...
      Filters out dirt and dust in the air preventing them from entering the engineHeavy duty construction for long service life
      $8.43 - $11.81
    • (0 reviews)
      # 20565252
      BMW 3-Series 1991, Air Filter by MANN-Filter®. Get excellent engine protection and more economical operation just by replacing your air filter. This MANN air filter is specially designed for your vehicle to ensure a precise fit and...
      Optimum protection for the engine, airflow meters and other sensorsPerfectly adapted in form and function to your vehicle
      $9.12 - $20.68
    • (0 reviews)
      # 64387316
      BMW 3-Series 1991, Air Filter Panel by WIX®. Inner Diameter Top: Closed. MediaType: Cellulose. Style: Air Filter Panel. Considering as much as 10,000 gallons of air must pass through the air filter for every gallon of fuel the...
      Prevents foreign particles like carbon, soot and abrasives from entering the fuel mixEnsures superior engine protection
      $9.52 - $12.01
    • (0 reviews)
      # 35541675
      BMW 3-Series 1991, Remanufactured Mass Air Flow Sensor by A1 Cardone®. Import. MAF Sensors precisely track O.E. output curves and maintain spec tolerances to ensure accurate scan tool readings for proper operation. 100% resolder of...
      50-state emissions street legalThe finest quality at a great price
      $80.14 - $237.74
    • (0 reviews)
      # 35806686
      BMW 318i / 318is 1991, Cabin Air Filter by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in...
      Charcoal activated filter media where specified by OE manufacturersSame form and fit as OE for proper fit in the cabin air filter housing
      $21.67
    • (0 reviews)
      # 24215668
      BMW 318is 1991, Workshop Particulate Cabin Air Filter by Bosch®. Width: 170 mm. Heigth: 25 mm. Spunbound Polyester Along. Keep the air inside your vehicle clean and fresh just by replacing your cabin air filter with a Workshop...
      Captures 80% of dirt and other pollutants smaller than 3 microns from entering through the vehicle’s heating and air ventsProtects passengers in your vehicle against pollen, dust and dirt particles
      $21.96
    • (0 reviews)
      # 21458436
      BMW 325i / 325is / 325iX 1991, Cabin Air Filter by Hastings®. This filter is specially designed and manufactured to reduce the amount of airborne pollutants and particles entering the cabin by capturing dust, pollen and other...
      Fully meets OE requirements for fit and operationReduces the level of contaminants, pollen, and dust in the cabin
      $21.84
    • (0 reviews)
      # 88167671
      BMW 318i / 318is 1991, Cabin Air Filter by Valeo®. 100% new Valeo products to exceed your expectations: high demand in electricity and heat. This product is designed and tested in stringent conditions that are established by OE...
      Designed to produce maximum charge output under all conditionsProvides improved efficiency in electrical various demands
      $15.18
    • (0 reviews)
      # 63118140
      BMW 325is 1991, Intermotor™ Intake Manifold Temperature Sensor by Standard®. Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $30.82
    • (0 reviews)
      # 77564101
      BMW 3-Series 1991, Air Flow Meter Boot by URO Parts®. Replace your worn out Air Intake part with this superior air intake part component designed by URO to restore your vehicle's factory performance. Manufactured to meet the...
      Replaces your worn out factory intake part to restore vehicle's performanceConstructed from top notch materials for ultimate strength and reliability
      $15.73 - $17.56
    • (0 reviews)
      # 8774385
      BMW 318i / 318is 1991, Air Mass Meter Boot 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 replacement, but...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $71.60
    • (0 reviews)
      # 103796922
      BMW 3-Series Automatic Transmission 1991, Air Mass Meter Boot by Meyle®. 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
      $26.54
    • (0 reviews)
      # 44882813
      BMW 3-Series 1991, Air Charge Temperature Sensor Connector by Standard®. 2 Terminals Female Connector. Finish: Black. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $9.34 - $15.99
    • (0 reviews)
      # 43996816
      BMW 325i / 325iX / 325is / M3 1991, Handypack™ Air Charge Temperature Sensor Connector by Standard®. Black. 2 Terminal Female. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $8.46
    • (0 reviews)
      # 8032709
      BMW 325i / 325is / 325iX Standard (Manual) Transmission 1991, Fuel Injection Air Flow Meter Boot by Vaico®. 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
      $41.16
    • (0 reviews)
      # 8826406
      BMW 325i / 325iX / 325is 1991, Throttle Body Cover by Genuine®. Note: (1) 13 54 1 285 471 housing gasket should also be replaced. May also require (3) 13 54 1 705 561 fillister head mounting screw. Is your vehicle hard to start?...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $51.54
    • (0 reviews)
      # 88046670
      BMW 325i / 325is / 325iX 1991, Throttle Body Cover 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $51.54
    • (0 reviews)
      # 98203009
      BMW 325i / 325is / 325iX 1991, Accelerator Cable by Gemo®. 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 you...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $36.76
    • (0 reviews)
      # 97666505
      BMW 325i / 325is / 325iX 1991, Intake Manifold Gasket by AJUSA®. Gasket Material:Fiber. These gaskets seal components in the intake and exhaust systems of the vehicle such as the intake manifold, intake plenum, and exhaust manifold...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $1.00 - $2.00
    • (0 reviews)
      # 97661562
      BMW 318i / 318is 1991, Intake Manifold Gasket Set by AJUSA®. Gasket Material:ACM. These gaskets seal components in the intake and exhaust systems of the vehicle such as the intake manifold, intake plenum, and exhaust manifold to...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $3.34
    • (0 reviews)
      # 105072651
      BMW 3-Series 1991, Intake Manifold Gasket by Elring®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you...
      $2.46 - $12.89
    • (0 reviews)
      # 24056286
      BMW 3-Series 1991, Intake Manifold Gasket by Victor Reinz®, Use 1 per Car. 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...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $9.62 - $13.96
    • (0 reviews)
      # 18983629
      BMW 325i / 325is / 325iX 1991, 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...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $13.66
    • (0 reviews)
      # 134292477
      BMW 325i / 325is / M3 1991, Air Cleaner Mount by First Equipment Quality®. 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
      $7.01
    • (0 reviews)
      # 8773689
      BMW 318i / 318is / 325i / 325is / 325iX / M3 1991, Lower Air Cleaner Mount by Genuine®. Rubber Stop, Under Housing. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $12.39
    • (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
    • (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




    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

    1991 BMW 3-Series Performance Air Intake Systems Reviews

    Average rating:  4.5  4.5 - 26 reviews
    5 of 5
    Fast Service
    Parts were as expected and delivery was fast.
    DPosted by David (Clio, MI) /
    Was this review helpful for you? Yes
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