Exposed filter design Promotes better air flow Backing plate delivers air into carb and throttle body Internal crank case breathers are built-in Includes K&N air filter and mounting hardware Optional rain sock and repl. air filter fit any RSD venturi air cleaner; sold separately Optional Venturi faceplate kit allows you to change any existing RSD Venturi air cleaner faceplate to a new design; fit RSD Venturi air cleaners only; sold separately Made in the U.S.A. Note: Replacement filter is part number 306357 Included Items: (3) 1/4-20 x 3/4" Sockethead bolts (5) 1/4-20 x 2-1/2" Sockethead bolts (1) K&N filter (1) Backing plate (1) Secondary plate (2) Breather standoffs (1) Mesh insert (2) Breather hex bolts (1) Supervented outer (5) Air box spacers (1) 1/2 x 13 to 3/8-16 Threaded insert (2) Rubber breather tubes (1) Foam ring (1) Instructions The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California. 2004-2006 Sportster - XL 883 2002-2003, 2005-2006 Sportster - XL 883R 1991-2003 Sportster - XLH 1200 1991-2003 Sportster - XLH 883 2007-2008 Sportster (EFI) - XL 883 2007 Sportster (EFI) - XL 883R 1996-2006, 2009-2017 Sportster Custom - XL 1200C 1999-2006, 2009 Sportster Custom - XL 883C 2007-2008 Sportster Custom (EFI) - XL 1200C 2007-2008 Sportster Custom (EFI) - XL 883C 1991-1995 Sportster Deluxe - XLH 883 2010-2017 Sportster Forty-Eight - XL 1200X 1991-2003 Sportster Hugger - XLH 883 2009-2016 Sportster Iron - XL 883N 2006, 2009-2011 Sportster Low - XL 1200L 2005-2006, 2009-2010 Sportster Low - XL 883L 2007-2008 Sportster Low (EFI) - XL 1200L 2007-2008 Sportster Low (EFI) - XL 883L 2009-2011 Sportster Nightster - XL 1200N 2007-2008 Sportster Nightster (EFI) - XL 1200N 2016-2017 Sportster Roadster - XL 1200CX 2004-2006 Sportster Roadster - XL 1200R 2007-2008 Sportster Roadster (EFI) - XL 1200R 2012-2016 Sportster Seventy Two - XL 1200V 1996-2003 Sportster Sport - XL 1200S 2014-2017 Sportster Superlow - XL 1200T 2011-2018 Sportster Superlow - XL 883L