K&N® - 57S Performance Airbox

51 reviews / Item # 323577
K&N® - 57S Performance Airbox
K&N® - 57S Performance AirboxK&N® - 57S Performance AirboxK&N® - Street LegalK&N® - Cleaning GuideK&N® - Warranty InformationK&N® - Done In House 602x420K&N Authorized Dealer
$154.99 - $256.99
● In Stock - Ships within 24 hours
2009 Audi A3
Fits Following Model(s):
  • 2.0L
    Not legal for sale or use in California.
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    K&N® - 57S Performance AirboxK&N® - Street Legal
    57S-9500

    Performance Airbox

    57S Performance Airbox by K&N®. This airbox has a stock appearing design and function, but will still greatly increase airflow. The increased airflow comes from a large conical shaped K&N air filter, and results in more horsepower and torque from the engine, and greater acceleration you can feel. Replacement Filter # RU-5061.

    Fitment Notes: Not legal for sale or use in California.

    K&N® - 57S Performance Airbox - Installation Instruction

    In Stock (12) - Ships within 24 hours

    $154.99
    K&N® - 57S Performance AirboxK&N® - 57S Performance Airbox - InstalledK&N® - Street Legal
    57S-9501

    Performance Airbox

    57S Performance Airbox by K&N®. This airbox has a stock appearing design and function, but will still greatly increase airflow. The increased airflow comes from a large conical shaped K&N air filter, and results in more horsepower and torque from the engine, and greater acceleration you can feel. Replacement Filter # RU-5061.

    Fitment Notes: Not legal for sale or use in California.

    In Stock (18) - Ships within 24 hours

    $256.99
    K&N® - Air Filter CleanerK&N® - Air Filter Cleaner

    Air Filter Cleaner

    Air Filter Cleaner by K&N®. This airbox has a stock appearing design and function, but will still greatly increase airflow. The increased airflow comes from a large conical shaped K&N air filter, and results in more horsepower and torque from the engine, and greater acceleration you can feel.

    In Stock - Ships within 24 hours

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      Product Details

      Learn everything you want to know about this product
      to make an informed purchase.

      K&N Air Intake Systems

      Audi A3 2.0L 2009, 57S Performance Airbox by K&N®. This airbox has a stock appearing design and function, but will still greatly increase airflow. The increased airflow comes from a large conical shaped K&N air filter, and results in more horsepower and torque from the engine, and greater acceleration you can feel. Replacement Filter # RU-5061.

      Fitment notes: Not legal for sale or use in California.

      K&N - F.A.Q.K&N - Warranty

      Features:

      • Guaranteed to increase horsepower and improve acceleration
      • Custom designed and engineered for each application
      • Works with OEM computer system
      • Mounts in place of the OEM airbox
      • Reduces induction noise
      • Includes the world's best air filter, the K&N filter
      • Easy to install
      • Up to 100,000 miles between servicing
      • Million Mile limited warranty

      The 57S Performance Airbox gives you the best of both worlds: Increased airflow and performance with an OEM style airbox. With the filter enclosed in an airbox, induction noise is greatly reduced. The airbox also protects the filter, so there's no need to worry about driving in extremely wet or dusty conditions with an exposed filter. Yet you still get vastly improved airflow compared to your stock airbox. How do they do it?

      K&N improves airflow by installing the largest conical shaped K&N filter that will fit in the airbox. The large increase in filter area over the stock air box filter results in a huge increase in airflow as well as a greater capacity to capture and hold dirt. The airbox also includes a custom engineered velocity stack that’s designed to smooth and straighten airflow for even more power.

      The 57S Performance Airbox is injection molded for extra strength, consistency and durability. It's designed to use the factory mounting holes, so no additional hardware, cutting or drilling is required. The air box has a removable lid for easy access to the K&N air filter when cleaning is required.

      K&N uses a dynamometer to design its air intake kits to make the most horsepower possible. But their power figures aren't based on just one vehicle, but rather an average of runs by a number of vehicles. This means repeatable numbers and horsepower claims you can count on.

      Every 57S Performance Airbox comes complete with everything necessary for installation, including comprehensive installation instructions. The K&N filter can go up to 100,000 miles before cleaning is required. And the K&N air filter is guaranteed for one million miles.

      K&N® is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. The first K&N filter was conceived for racing over 40 years ago and a performance enthusiast mindset continues today throughout all levels of the company. K&N is the sales and brand leader for performance filters, including an extensive line of factory replacement filters and performance air intake kits. The company actively promotes the environmental, economical and performance advantages of long-life reusable cotton gauze filters.

      Product Reviews

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      K&N® - 57S Performance Airbox
      K&N® - 57S Performance Airbox
      Average Rating: 5 of 5
      5
      5 of 5
      Very Good
      Good customer service. Good quality item and shipping was good.
      FPosted by (Tseung Kwan O, New Territorie) /
      2010 Volkswagen Golf
      Was this review helpful for you? Yes4   people found this review helpful.
      K&N® - 57S Performance AirboxK&N® - 57S Performance Airbox    $154.99 - $256.99
      51 reviews
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