Description

The K&N 57S-4900 Performance Airbox replaces the restrictive factory air filter and air box. K&N performance air boxes 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-4900 Performance Airbox comes with a custom shaped K&N high-flow air filter and a fully enclosed injection molded air box that connects up to the factory air intake hose. The 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 performance air box is relatively easy to install into the previous air box space with commonly available tools. K&N builds these air box 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.

  • Guaranteed to increase horsepower
  • Designed to improve torque and acceleration
  • Replaces entire factory air box and air filter system
  • 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

Specifications

  • Installation Time : 60-90 Minutes
  • Tools Needed : Wrench, Extension, Flat Blade Screwdriver, Allen Wrench
  • Replacement Filter : RU-5281
  • Air Filter Color : Red
  • Filter Material : Cotton Gauze
  • Air Filter Outlet Shape : Oval
  • Clamps Included : 1
  • Clamp Material : Stainless Steel
  • Clamp Style : Regular
  • Couplers Included : None
  • Type : Gen II
  • Product Style : 57i Series International Kits
  • Air Filter Height : 5.313 in (135 mm)
  • Street Legal In All US States : No
  • TUV Approved (Europe) : See Vehicle Applications
  • TUV Certificate Number : A2054-779TUV
  • Weight : 3.8 lb (1.7 kg)
  • Air Filter Large End Diameter : 6.563 in (167 mm)
  • Product Box Height : 11.81 in (300 mm)
  • Product Box Length : 15.34 in (390 mm)
  • Product Box Width : 11.81 in (300 mm)
  • California Restricted : Not legal for sale or use in California
  • Mounting Hardware Included : Yes
  • Warranty : 1,000,000 Miles/10 Year

Compatibility

  • 2003 Holden Astra 1.8L L4 Gas All Models
  • 2009 Vauxhall Astra MK5 1.6L L4 Gas Except Turbo
  • 1998-2004 Opel Astra G 1.6L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 1.2L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 1.4L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 1.6L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 1.8L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 2.0L L4 Gas All Models
  • 1998-2005 Opel Astra G 1.2L L4 Gas All Models
  • 1998-2005 Opel Astra G 1.4L L4 Gas All Models
  • 1998-2005 Opel Astra G 1.8L L4 Gas All Models
  • 1998-2005 Opel Astra G 2.0L L4 Gas All Models
  • 1999-2002 Opel Zafira 1.8L L4 Gas All Models
  • 1999-2005 Vauxhall Zafira 1.6L L4 Gas All Models
  • 1999-2005 Vauxhall Zafira 1.8L L4 Gas All Models
  • 1999-2008 Opel Zafira 1.6L L4 Gas All Models
  • 2001-2005 Vauxhall Zafira 2.0L L4 Gas All Models
  • 2001-2008 Opel Zafira 2.0L L4 Gas All Models
  • 2004-2008 Opel Zafira 1.8L L4 Gas All Models
  • 2004-2008 Vauxhall Astra MK5 1.6L L4 Gas All Models
  • 2004-2009 Opel Astra H 1.4L L4 Gas All Models
  • 2004-2009 Opel Astra H 1.8L L4 Gas All Models
  • 2004-2009 Opel Astra H 2.0L L4 Gas All Models
  • 2004-2009 Vauxhall Astra MK5 1.4L L4 Gas All Models
  • 2004-2009 Vauxhall Astra MK5 1.8L L4 Gas All Models
  • 2004-2009 Vauxhall Astra MK5 2.0L L4 Gas All Models
  • 2005-2006 Opel Astra H 1.6L L4 Gas All Models
  • 2005-2008 Vauxhall Zafira MK2 1.6L L4 Gas All Models
  • 2005-2011 Vauxhall Zafira MK2 1.8L L4 Gas All Models
  • 2005-2011 Vauxhall Zafira MK2 2.0L L4 Gas All Models
  • 2007-2009 Opel Astra H 1.6L L4 Gas Except Turbo
  • 2009-2011 Opel Zafira II 1.6L L4 Gas Except Turbo
  • 2009-2011 Opel Zafira II 1.8L L4 Gas All Models
  • 2009-2011 Opel Zafira II 2.0L L4 Gas All Models
  • 2009-2011 Vauxhall Zafira MK2 1.6L L4 Gas Except Turbo

The K&N 57S-4900 Performance Airbox replaces the restrictive factory air filter and air box. K&N performance air boxes 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-4900 Performance Airbox comes with a custom shaped K&N high-flow air filter and a fully enclosed injection molded air box that connects up to the factory air intake hose. The 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 performance air box is relatively easy to install into the previous air box space with commonly available tools. K&N builds these air box 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.

  • Guaranteed to increase horsepower
  • Designed to improve torque and acceleration
  • Replaces entire factory air box and air filter system
  • 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
  • Installation Time : 60-90 Minutes
  • Tools Needed : Wrench, Extension, Flat Blade Screwdriver, Allen Wrench
  • Replacement Filter : RU-5281
  • Air Filter Color : Red
  • Filter Material : Cotton Gauze
  • Air Filter Outlet Shape : Oval
  • Clamps Included : 1
  • Clamp Material : Stainless Steel
  • Clamp Style : Regular
  • Couplers Included : None
  • Type : Gen II
  • Product Style : 57i Series International Kits
  • Air Filter Height : 5.313 in (135 mm)
  • Street Legal In All US States : No
  • TUV Approved (Europe) : See Vehicle Applications
  • TUV Certificate Number : A2054-779TUV
  • Weight : 3.8 lb (1.7 kg)
  • Air Filter Large End Diameter : 6.563 in (167 mm)
  • Product Box Height : 11.81 in (300 mm)
  • Product Box Length : 15.34 in (390 mm)
  • Product Box Width : 11.81 in (300 mm)
  • California Restricted : Not legal for sale or use in California
  • Mounting Hardware Included : Yes
  • Warranty : 1,000,000 Miles/10 Year
  • 2003 Holden Astra 1.8L L4 Gas All Models
  • 2009 Vauxhall Astra MK5 1.6L L4 Gas Except Turbo
  • 1998-2004 Opel Astra G 1.6L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 1.2L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 1.4L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 1.6L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 1.8L L4 Gas All Models
  • 1998-2004 Vauxhall Astra Mk4 2.0L L4 Gas All Models
  • 1998-2005 Opel Astra G 1.2L L4 Gas All Models
  • 1998-2005 Opel Astra G 1.4L L4 Gas All Models
  • 1998-2005 Opel Astra G 1.8L L4 Gas All Models
  • 1998-2005 Opel Astra G 2.0L L4 Gas All Models
  • 1999-2002 Opel Zafira 1.8L L4 Gas All Models
  • 1999-2005 Vauxhall Zafira 1.6L L4 Gas All Models
  • 1999-2005 Vauxhall Zafira 1.8L L4 Gas All Models
  • 1999-2008 Opel Zafira 1.6L L4 Gas All Models
  • 2001-2005 Vauxhall Zafira 2.0L L4 Gas All Models
  • 2001-2008 Opel Zafira 2.0L L4 Gas All Models
  • 2004-2008 Opel Zafira 1.8L L4 Gas All Models
  • 2004-2008 Vauxhall Astra MK5 1.6L L4 Gas All Models
  • 2004-2009 Opel Astra H 1.4L L4 Gas All Models
  • 2004-2009 Opel Astra H 1.8L L4 Gas All Models
  • 2004-2009 Opel Astra H 2.0L L4 Gas All Models
  • 2004-2009 Vauxhall Astra MK5 1.4L L4 Gas All Models
  • 2004-2009 Vauxhall Astra MK5 1.8L L4 Gas All Models
  • 2004-2009 Vauxhall Astra MK5 2.0L L4 Gas All Models
  • 2005-2006 Opel Astra H 1.6L L4 Gas All Models
  • 2005-2008 Vauxhall Zafira MK2 1.6L L4 Gas All Models
  • 2005-2011 Vauxhall Zafira MK2 1.8L L4 Gas All Models
  • 2005-2011 Vauxhall Zafira MK2 2.0L L4 Gas All Models
  • 2007-2009 Opel Astra H 1.6L L4 Gas Except Turbo
  • 2009-2011 Opel Zafira II 1.6L L4 Gas Except Turbo
  • 2009-2011 Opel Zafira II 1.8L L4 Gas All Models
  • 2009-2011 Opel Zafira II 2.0L L4 Gas All Models
  • 2009-2011 Vauxhall Zafira MK2 1.6L L4 Gas Except Turbo

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