1999 Audi A8 Performance Air Intake Systems

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    • K&N® 33 Series Air Filter
      (0 reviews)
      Audi A8 / A8 Quattro 1999, 33 Series Air Filter by K&N®. Get better performance, superior engine protection and more economical operation just by changing your air filter. The K&N air filter gives you increased airflow without...
      $67.49$53.99
      # 44369757
    • MANN-Filter® Air Filter
      (0 reviews)
      Audi A8 / A8 Quattro 1999, 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...
      Optimum protection for the engine, airflow meters and other sensorsPerfectly adapted in form and function to your vehicle
      $25.60$20.48
      # 20556863
    • Hastings® Air Filter
      (0 reviews)
      Audi A8 / A8 Quattro 1999, 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...
      Filters out dirt and dust in the air preventing them from entering the engineHeavy duty construction for long service life
      $30.48$24.38
      # 21455793
    • Beck Arnley® Air Filter
      (0 reviews)
      Audi A8 / A8 Quattro 1999, 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...
      OE quality products from top original equipmentTop quality materials
      $27.89$22.31
      # 35809538
    • Hengst® Air Filter
      (0 reviews)
      Audi A8 / A8 Quattro 1999, Air Filter by Hengst®. 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...
      $30.55$24.44
      # 53984945
    • Dorman® Mass Air Flow Sensor
      (0 reviews)
      Audi A8 / A8 Quattro 1999, Mass Air Flow Sensor by Dorman®. Without Housing, Mounting Bracket. Black. Standard Replacement, Female Connector Gender. Product Condition: New. This is an aftermarket part that replaces factory OE #...
      Constructed from high-quality materials to successfully resist damage from extreme underhood temperatures and environmental factors, such as humidityDirect fit for a trouble-free replacement
      $165.70$132.56
      # 54306104
    • Bosch® Mass Air Flow Sensor
      (0 reviews)
      Audi A8 / A8 Quattro 1999, Mass Air Flow Sensor by Bosch®. It's all a question of the right mixture. If your mass air flow sensor needs replacement, it pays off to rely on a premium quality Bosch mass air flow sensor. It guarantees...
      Maximum reliability and a long service lifeMeets or exceeds OEM specifications
      $167.18$133.74
      # 23953883
    • Standard® Intermotor™ Air Charge Temperature Sensor
      (0 reviews)
      Audi A8 / A8 Quattro 1999, Intermotor™ Air Charge Temperature Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $35.89$28.71
      # 45057716
    • Bosch® Intake Manifold Temperature Sensor
      (0 reviews)
      Audi A8 / A8 Quattro 1999, Intake Manifold Temperature Sensor by Bosch®. Has your intake manifold temperature sensor failed? Choose a Bosch replacement intake manifold temperature sensor that is synonymous with premium quality,...
      Maximum reliability and long service lifeMeets or exceeds OEM specifications
      $30.85$24.68
      # 23954117
    • Victor Reinz® Intake Manifold Gasket Set
      (0 reviews)
      Audi A8 Quattro 1999, Intake Manifold Gasket Set by Victor Reinz®, Use 1 per Car. OEM Standard Part. Material: Coated Steel. Not Included: Plenum Gasket. When you’re low on oil, coolant or some other fluid, you may be tempted to...
      $58.09$46.47
      # 24046258
    • Beru® Air Temperature Sensor
      (0 reviews)
      Audi A8 / A8 Quattro 1999, Air Temperature Sensor by Beru®. 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...
      $36.89$29.51
      # 53266436
    • A1 Cardone® Remanufactured Mass Air Flow Sensor
      (0 reviews)
      Audi A8 / A8 Quattro 1999, Remanufactured Mass Air Flow Sensor by A1 Cardone®. Plastic Housing. Black. Mounting Hole Count: 2. Configuration Type: Bolt-On. With Housing, Mass Air Flow Sensor, Instruction Sheet. This is an...
      50-state emissions street legalThe finest quality at a great price
      $138.41$110.73
      # 35533470
    • Injen® EA Nanofiber Dry Air Filter
      (27 reviews)
      Universal EA Nanofiber Dry Air Filter by Injen®. This air filter is a major breakthrough in air filtration technology. It features a revolutionary synthetic nanofiber filter media that increases airflow, while capturing and holding...
      $66.58from $53.26 - $68.80
      # 375948
    • Injen® High Performance Air Filter
      (17 reviews)
      Universal High Performance Air Filter by Injen®. Replace your worn out air filter with this high flow High Performance filter. It features a built-in velocity stack for added performance, urethane top and base to resist heat...
      $61.65from $49.32 - $57.54
      # 375936
    • K&N® Dual Flange Oval Straight Air Filter
      (0 reviews)
      Universal Dual Flange Oval Straight Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.
      $47.49from $37.99 - $213.99
      # 25513976
    • K&N® Oval Tapered Air Filter
      (0 reviews)
      Universal Oval Tapered Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.
      $41.24from $32.99 - $192.99
      # 25636561
    • K&N® Round Straight Air Filter
      (0 reviews)
      Universal Round Straight Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.
      $28.73from $22.98 - $251.99
      # 25615890
    • K&N® Round Tapered Air Filter
      (4 reviews)
      Universal Round Tapered Air Filter by K&N®. Get better performance, superior engine protection and more economical operation with a K&N Air Filter. K&N Universal Air Filters are available for just about any application.
      $27.13from $21.70 - $120.99
      # 25611518
    • AEM® Clamp-On Round DryFlow Racing Air Filter
      (0 reviews)
      Universal Clamp-On Round DryFlow Racing Air Filter by AEM®. Let your engine breathe with an AEM DryFlow Racing filter! Every DryFlow filter is engineered to exceed the engine's normal airflow requirement. And thanks to AEM's...
      $83.74$66.99
      # 328142
    • AEM® Oval DryFlow Air Filter
      (0 reviews)
      Universal Oval DryFlow Air Filter by AEM®. Let your engine breathe with an AEM DryFlow filter! Every DryFlow filter is engineered to exceed the engine's normal airflow requirement. And thanks to AEM's DryFlow technology, cleaning...
      $48.74from $38.99 - $95.99
      # 313145
    • AEM® Oval DryFlow Brute Force Air Filter
      (0 reviews)
      Universal Oval DryFlow Brute Force Air Filter by AEM®. These filters are much larger than standard DryFlow filters and engineered to exceed the airflow requirements of large displacement engines. They are designed to be durable and...
      $88.74from $70.99 - $74.99
      # 313143
    • AEM® Round DryFlow Air Filter
      (2 reviews)
      Universal Round DryFlow Air Filter by AEM®. Let your engine breathe with an AEM DryFlow filter! Every DryFlow filter is engineered to exceed the engine's normal airflow requirement. And thanks to AEM's DryFlow technology, cleaning...
      $30.06from $24.05 - $60.99
      # 322114
    • AEM® Round DryFlow Brute Force Air Filter
      (1 reviews)
      Universal Round DryFlow Brute Force Air Filter by AEM®. These filters are much larger than standard DryFlow filters and engineered to exceed the airflow requirements of large displacement engines. They are designed to be durable...
      $58.74from $46.99 - $54.99
      # 313144
    • Airaid® Round Air Filter
      (0 reviews)
      Universal Round 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 increased airflow and provides better air...
      $61.13from $48.90 - $81.90
      # 440764
    • Airaid® Sweet 16" Round Air Filter
      (0 reviews)
      Universal Sweet 16" Round Air Filter by Airaid®, 16" OD x 14" ID. Advanced air filtration technology, superior construction and the world's best warranty make an AIRAID air filter the best you can buy. It allows increased airflow...
      $57.38from $45.90 - $104.90
      # 13606468
    • AIRAID® Breather Filter
      (5 reviews)
      Universal Breather Filter by AIRAID®. Keep your engine breathing properly and looking good with these crankcase vent filters.
      $21.13from $16.90 - $26.90
      # 440783
    • Weapon-R® Secret Weapon Air Filter
      (10 reviews)
      Universal Secret Weapon Air Filter by Weapon-R®. The Secret Weapon air filter performs better than any other air filter available in the market today. It provides maximum airflow with the protection of Polyurethane foam.
      $81.25from $65.00 - $75.00
      # 282485
    • Weapon-R® V2 Hyper Air Filter
      (2 reviews)
      Universal V2 Hyper Air Filter by Weapon-R®. The Polyurethane foam in the V2 Hyper air filter flows more air and traps more dirt than comparable paper and cotton filters.
      $62.50from $50.00 - $55.00
      # 290322
    • Weapon-R® Dragon Air Filter
      (17 reviews)
      Universal Dragon Air Filter by Weapon-R®. The Polyurethane foam in the Dragon air filter flows more air and traps more dirt than comparable paper and cotton filters. The Dragon air filter is one of the highest rated air filters in...
      $68.75from $55.00 - $65.00
      # 282419
    • Weapon-R® Dragon Breather Filter
      (6 reviews)
      Universal Dragon Breather Filter by Weapon-R®. Keep your throttle responsive with the installation of this breather filter.
      $12.50$10.00
      # 284597
    • Weapon-R® Super Matrix Breather Filter
      (4 reviews)
      Universal Super Matrix Breather Filter by Weapon-R®. Keep your throttle responsive with the installation of this breather filter.
      $12.50$10.00
      # 286325
    • VOLANT® PowerCore® Air Filter
      (0 reviews)
      Audi A8 1999, Universal PowerCore® Air Filter by VOLANT®. By using Donaldson's® PowerCore® Filtration Technology submicron contaminants load on the surface rather than collecting in the depth of the filter. This boosts...
      High-Quality Synthetic MaterialProvides Vastly Improved Filtration up to 99.97%
      $110.16$88.13
      # 58346820
    • VOLANT® Primo Air Filter
      (0 reviews)
      Audi A8 1999, Universal Primo Air Filter by VOLANT®. Volant's high performance 5 layer air filters are made of the highest quality textiles, pleated between a top and bottom aluminum screen.
      Cleanable and ReusableFive-Layers of protection
      $78.73from $62.98 - $79.13
      # 58346842
    • VOLANT® Pro 5 Air Filter
      (0 reviews)
      Audi A8 1999, Universal Pro 5 Air Filter by VOLANT®. Volant's high performance 5 layer air filters are made of the highest quality textiles, pleated between a top and bottom aluminum screen.
      Cleanable and ReusableFive-Layers of protection
      $78.73$62.98
      # 58346850
    • VOLANT® Pro 5 Air Filter Breather
      (0 reviews)
      Audi A8 1999, Universal Pro 5 Air Filter Breather by VOLANT®, 0.75" F x 2" B x 2" D x 1.5" H. Volant's high performance 5 layer air filters are made of the highest quality textiles, pleated between a top and bottom aluminum screen.
      Cleanable and ReusableFive-Layers of protection
      $46.98$37.58
      # 58346705
    • aFe® Round Air Filter
      (0 reviews)
      Universal Round Racing Air Filter by aFe®. These universal air filters are designed to provide performance and protection. They fit into the stock filter housing, but flow better and last longer. They feature extra-deep pleats and...
      $52.83from $42.26 - $126.89
      # 847887
    • Spectre Performance® HPR™ OE Replacement Air Filter
      (0 reviews)
      Universal 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 racetrack! All...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $31.31from $25.05 - $25.20
      # 12061070
    • Takeda® Pro 5R Air Filter
      (0 reviews)
      Universal Pro 5R Air Filter by Takeda®. Fight dirt and dust and give your engine more air to breathe at the same time with this high-performance cotton gauze filter. Don’t simply discard it when it’s dirty: clean it with soap...
      $39.94from $31.95 - $156.95
      # 4250794
    • Takeda® Pro DRY S Air Filter
      (1 reviews)
      Universal Pro DRY S Air Filter by Takeda®. 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 priority,...
      $69.94from $55.95 - $82.51
      # 847869
    • GREEN FILTER® Color Match Cone Air Filter
      (1 reviews)
      Universal Color Match Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find cone-style aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of...
      $40.43from $32.34 - $72.81
      # 2565312
    • GREEN FILTER® Color Match Dual Cone Air Filter
      (1 reviews)
      Universal Color Match Dual Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find dual-cone aircleaner element, try matching it up here. Choose by inside diameter of the rubber bottom ring,...
      $61.30from $49.04 - $65.11
      # 2565314
    • GREEN FILTER® Color Match Round Air Filter
      (1 reviews)
      Universal Color Match Round Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find round aircleaner element, try matching it up here. Choose by inside diameter, outside diameter and overall...
      $59.16from $47.33 - $58.36
      # 2565310
    • GREEN FILTER® Cone Air Filter
      (4 reviews)
      Universal Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find cone-style aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of the base,...
      $37.09from $29.67 - $115.50
      # 2565318
    • GREEN FILTER® Cylinder Air Filter
      (1 reviews)
      Universal Cylinder Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find cylindrical aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of the...
      $20.99from $16.79 - $76.75
      # 2565319
    • GREEN FILTER® Dual Cone Air Filter
      (0 reviews)
      Universal Dual Cone Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find dual-cone style aircleaner element, try matching it up here. Choose by inside diameter of the hose, outside diameter of...
      $73.50from $58.80 - $82.50
      # 2565320
    • GREEN FILTER® Round Air Filter
      (0 reviews)
      Universal Round Air Filter by Green Filter®. If you have a custom or oddball car that uses a hard-to-find round aircleaner element, try matching it up here. Choose by inside diameter, outside diameter and overall height. This might...
      $49.49from $39.59 - $61.62
      # 2565299
    • Rugged Ridge® Conical Air Filter
      (0 reviews)
      Universal Conical Air Filter by Rugged Ridge®. Get increased airflow, better filtration and reduced maintenance with this high performance synthetic air filter. The increased airflow will improve engine performance, while the...
      Improves airflow and engine performanceProvides superior air filtration for increased engine protection
      $44.99$35.99
      # 6894347
    • aFe® Crankcase Vent Breather Filter
      (1 reviews)
      Universal Crankcase Vent Breather Filter by aFe®. Keep your engine breathing properly and looking good with this crankcase vent breather filter.
      $34.34from $27.47 - $49.70
      # 847851
    • GREEN FILTER® Crankcase Air Filter
      (1 reviews)
      Universal Crankcase Air Filter by Green Filter®. Route your crankcase breather into one of these filters to keep dirt and bugs from entering your crankcase. It’s easy to clean, and will soak up some glop that otherwise would wind...
      $20.99from $16.79 - $20.99
      # 2565187
    • AIRAID® Mass Air Flow Tube with Plate
      (0 reviews)
      Universal Mass Air Flow Tube with Plate by AIRAID®. Mass Air Flow Tube will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $62.38from $49.90 - $59.90
      # 36008690
    • AIRAID® Mass Air Flow Tube
      (0 reviews)
      Universal Mass Air Flow Tube by AIRAID®. Mass Air Flow Tube will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $37.38$29.90
      # 36008686
    • AIRAID® Mass Air Flow Sensor Plate
      (0 reviews)
      Universal Mass Air Flow Sensor Plate by AIRAID®. Mass Air Flow Sensor Plate will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $31.13from $24.90 - $49.90
      # 36008683
    • AIRAID® Air Intake Hump Hose
      (0 reviews)
      Universal Air Intake Hump Hose by AIRAID®. Air Intake Hump Hose will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $11.13from $8.90 - $69.90
      # 36008593
    • AIRAID® Air Intake Silicone Reducer
      (0 reviews)
      Universal Intake Silicone Reducer by AIRAID®. Air Intake Silicone Reducer will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $17.38from $13.90 - $67.90
      # 36008628
    • AIRAID® Air Intake Tube
      (0 reviews)
      Universal Air Intake Tube by AIRAID®. Air Intake Tube will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $8.63from $6.90 - $59.90
      # 36008512
    • AIRAID® Intake Bracket
      (0 reviews)
      Universal L-Shaped 90 Degree Intake Bracket Tube Mount by AIRAID®. Intake Brackets will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $13.13$10.50
      # 36008511
    • AIRAID® Straight Intake Bracket
      (0 reviews)
      Universal Intake Bracket by AIRAID®. Intake Brackets Plate will perfectly meet your needs and make your life easier with AIRAID accessories.
      Improves airflow and engine performanceOver 99% efficiency rating
      $8.13from $6.50 - $44.90
      # 36008671
    • Spectre Performance® Air Intake Hump Hose
      (0 reviews)
      Universal Air Intake Hump Hose 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
      $40.50$32.40
      # 12037463
    • Spectre Performance® Intake Tube Extension with Collar
      (0 reviews)
      Universal Intake Tube Extension with Collar 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!...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $6.25$5.00
      # 12061769
    • Spectre Performance® Intake Tube Funnel
      (0 reviews)
      Universal Intake Tube Funnel 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 are...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $10.44from $8.35 - $12.53
      # 12061770



    Guides & Articles
    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...
    Most aftermarket air filters are constructed from multiple layers of cotton gauze, which are sandwiched between wire mesh that is formed into pleats. The layers of oiled cotton fibers are able to trap dirt particles that are even smaller than the holes in the filter media. The airflow stays consistent between cleanings, for optimal combustion.
    The easiest way to improve airflow to your engine is just by changing your stock air filter to an aftermarket performance air filter. There’s an aftermarket air intake system for every budget and every application. Even if you have a hot rod or custom car, or if your car’s just not listed in a catalog, you can still get a quality system. Everyone, regardless of...