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  • K & N

K & N High-Flow Complete Intake Airbox Assembly - 63-1123

  • Part #: 306121
  • Manufacturer Part #: 63-1123
  • MSRP Price: $544.95
  • Our Price: $490.46
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Overview of K & N High-Flow Complete Intake Airbox Assembly - 63-1123

  • Boost horsepower on the YFZ450 by over 4HP
  • Replacing the stock airbox and intake tract, the assembly provides you with a complete rotomolded intake tube, a powder-coated aluminum airbox/heat shield and an oversized K&N high-flow air filter
  • An oversized air filter is used, lowering restriction while providing high dirt and dust capacity
  • The K&N high-flow air filter is washable, reusable, pre-oiled and ready for installation
  • The airbox is powder-coated black, in order to withstand the elements of rust and corrosion
  • A K&N supplied, remote mounted crankcase breather keeps the air filter cleaner while dissipating the extra heat and oils generating from crankcase pressure
  • Each kit is sold complete, with mounting hardware and hose connectors included
  • Covered by the K&N limited warranty for one year
  • Filter is pre-oiled

  • NOTE: Jetting modifications will be necessary to obtain maximum performance


Specs

Type Airbox
Units Each
Weight 6.45 lbs

Specs for K & N High-Flow Complete Intake Airbox Assembly - 63-1123

Type Airbox
Units Each
Weight 6.45 lbs

Fitment for K & N High-Flow Complete Intake Airbox Assembly - 63-1123

Part 306121 fits the following machines

See if this part fits your ride

Yamaha
2012 Yamaha YFZ450
2009 Yamaha YFZ450
2008 Yamaha YFZ450
2007 Yamaha YFZ450
2006 Yamaha YFZ450
2005 Yamaha YFZ450
2004 Yamaha YFZ450
2007 Yamaha YFZ450BB Bill Ballance Edition
2006 Yamaha YFZ450BB Bill Ballance Edition
2005 Yamaha YFZ450LE Limited Edition
2004 Yamaha YFZ450LE Limited Edition
2012 Yamaha YFZ450R
2011 Yamaha YFZ450R
2010 Yamaha YFZ450R
2009 Yamaha YFZ450R
2012 Yamaha YFZ450RSE Special Edition
2011 Yamaha YFZ450RSE Special Edition
2010 Yamaha YFZ450RSE Special Edition
2009 Yamaha YFZ450RSE Special Edition
2008 Yamaha YFZ450SE Special Edition
2007 Yamaha YFZ450SE Special Edition
2005 Yamaha YFZ450SE Special Edition
2008 Yamaha YFZ450SE2 Special Edition 2
2007 Yamaha YFZ450SE2 Special Edition 2
2006 Yamaha YFZ450SP 50th Anniversary Edition
2008 Yamaha YFZ450SP Special Edition
2008 Yamaha YFZ450SP2 Special Edition 2
2011 Yamaha YFZ450X
2010 Yamaha YFZ450X
2011 Yamaha YFZ450X SE
2010 Yamaha YFZ450XBB Bill Balance Edition

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Instructions and Media for K & N High-Flow Complete Intake Airbox Assembly - 63-1123

Owners Manual - PDF Owners Manual - PDF Manual PDF
Video Product Info: K&N: High-Flow Complete Intake Airbox Assembly Yamaha YFZ450 Instructional Video 1:30