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K&N 57S-9501 5.0 out of 5 stars 2 Customer Reviews
57i Series Kits > Performance Intake Kit

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57S-9501
 
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The K&N 57S-9501 Performance Airbox is an air intake system that replaces the restrictive factory air filter and air intake assembly. K&N intakes are designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine’s RPM range. The 57S-9501 air intake comes with an oversized cone shaped K&N high-flow air filter, a fully enclosed injection-molded air box, a mandrel-bent aluminum air intake tube and a flexible air intake hose. The aluminum air intake tube is powder coated in a durable textured black finish. The performance air box has a removable lid for easy access to the filter when cleaning is required. The air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake system is relatively easy to install usually in 90 minutes or less using the vehicle’s existing factory mounting points with commonly available tools. K&N builds these air intake systems to last for the life of your vehicle and they are backed by K&N's Million Mile Limited Warranty. Some K&N 57S Series Performance Airboxes are compliant with the latest TUV emissions and sound regulations. Check the K&N catalog or website for vehicle applications and specific TUV status for each vehicle and air intake.

[More Information on 57S Performance Airbox Systems]
  • Guaranteed to increase horsepower
  • Designed to improve torque and acceleration
  • Replaces entire factory air intake assembly
  • Washable and reusable lifetime air filter
  • Easy to install, usually in 90 minutes or less
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • K&N Million Mile Limited Warranty


Product Specifications 
Air Filter Color:Red
Air Filter Height:6.5 in (165 mm)
Air Filter Large End Diameter:6 in (152 mm)
Air Filter Material:Cotton Gauze
Air Filter Outlet Shape:Round
California Restricted:Not legal for sale or use in California
Clamp Material:Steel
Clamp Style:Regular
Clamps Included:3
Couplers Included:1
Intake Pipe Color / Finish:Textured Black
Intake Pipe Ports:All intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter Included:Mass Air Flow Sensor Adapter Included When Required
Part Number:57S-9501
Product Box Height:12 in (305 mm)
Product Box Length:20 in (508 mm)
Product Box Width:12 in (305 mm)
Product Style:57i Series International Kits
Replacement Filter:RU-5061
Street Legal In All US States:No
TUV Approved (Europe):See Application Link Above
TUV Certificate Number:TU-025704-A0-206
Type:Gen II
Vacuum Tubing Included:Yes
Weight:5.5 lb (2.5 kg)


Product Reviews      Review part 57S-9501

 Installation time and procedure in my Audi was exactly as stated. No surprises. Noticeably improved throttle response with the K&N cold air intake versus the stock airbox. Definitely recommend this upgrade.
Mike, Ohio
 I have to say I am very happy with your Intake (57S-9501) all of the installation went well and I like it very much.
Glenn Hirt, Home