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K&N 57S-9501 Performance Air Intake System

57i Series Kits > Performance Air Intake System
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.8 out of 5 stars   4 Customer Reviews
  • 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
The K&N 57S-9501 Performance Air Intake System fits some Audi A3, Audi TT, Audi TT Quattro, Seat Alhambra II, Seat Altea, Seat Altea XL, Seat Leon, Seat Toledo III, Skoda Octavia, Skoda Superb, Skoda Yeti, Volkswagen Beetle, Volkswagen Caddy III, Volkswagen Caddy IV, Volkswagen CC, Volkswagen Eos, Volkswagen Golf Plus, Volkswagen Golf V, Volkswagen Golf VI, Volkswagen Jetta V, Volkswagen Passat, Volkswagen Passat CC, Volkswagen Scirocco, Volkswagen Sharan II, Volkswagen Tiguan, and Volkswagen Touran models. See vehicle applications link for details.
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. 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 K&N 57S Performance Airbox Systems]

Product Specifications

Air Filter ColorRed
Air Filter Height6.5 in (165 mm)
Air Filter Large End Diameter6 in (152 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
California RestrictedNot legal for sale or use in California
Clamp MaterialSteel
Clamp StyleRegular
Clamps Included3
Couplers Included1
Intake Pipe Color / FinishTextured Black
Intake Pipe MaterialAluminum
Product Box Height12 in (305 mm)
Product Box Length20 in (508 mm)
Product Box Width12 in (305 mm)
Product Style57i Series International Kits
Replacement FilterRU-5061
Street Legal In All US States No
TUV Approved (Europe)See Application Link Above
TUV Certificate NumberTU-025704-A0-206
TypeGen II
Weight5.5 lb (2.5 kg)

K&N 57S-9501 Performance Air Intake System Product Reviews

Thursday, January 5, 2017 - Part 57S-9501
Hi All, Thanks for the opportunity to give feed back on the install of the above to my 2012 VW Passat AllTrack 170PS Diesel. The install went in no problems in about half an hour as stated, although #15. Depending on the model, fit the other end of the cold air hose down to the under tray or grille and secure using the cable ties supplied. (Fig 13) I originally passed the cold air intake down to the under tray, this caused a couple of problems. 1 - the air intake became loose and subsequently sucked itself to the strut and therefore effectively strangled the intake and reduced the power to the engine and also caused the car to go into limp home mode. 2 - when looking for a better place to fit the intake I realized that I had actually reduced the height of the air intake to below that of the original car, as the car is an AllTrack and is 4WD and has slight off-road potential, I had just caused it to not be able to go through a puddle over 8 inches deep due to the placement of the intake. I looked at the airbox feed removed in point 5 of your instructions and with a bit of fiddling realised that this can be re-fitted and the intake piped into it. This should also work as a RAMAIR intake and thus force more air in at higher speeds (hopefully). If this can be added to future install sheets for others to follow I would be grateful. Thanks again, Kind Regards Mark

Leigh, United Kingdom
Thursday, January 8, 2015 - Part 57S-9501
The part fit perfectly on my seat leon 2012. Got good acceleration and the noise is minimal.

Monday, August 4, 2014 - 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.

Saturday, October 26, 2013 - Part 57S-9501
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