An amazing product that's worth the money. The difference from the OEM air intake compared to the KN air intake is a sure-fire upgrade. Gain almost instant throttle response and a noticable amount of power. K&N backs their products up with good reason because they work.

Part HA-1301 Product Specifications
Product Style: Unique Air Filters
Filter Material: Cotton Gauze
Flanges: None
Height: 6.875 in (175 mm)
Weight: 1.6 lb (0.7 kg)

Manufacturer Part Number
Honda 17210MEJ000
Honda 17210MEJ980
Honda 17210MEJ981
BMC FM37512

K&N HA-1301 fits the following:
2019 Honda CB1100 EX 1140 - All
2019 Honda CB1100 RS 1140 - All
2018 Honda CB1100 EX 1140 - All
2018 Honda CB1100 RS 1140 - All
2017 Honda CB1100 EX 1140 - All
2017 Honda CB1100 RS 1140 - All
2016 Honda CB1100 1140 - All
2015 Honda CB1100 1140 - All
2014 HONDA CB1100 ABS 1140 - All  
2014 HONDA CB1100 1140 - All  
2013 HONDA CB1100 ABS 1140 - All  
2013 HONDA CB1100 1140 - All
2012 HONDA CB1300S 1300 - All  
2012 HONDA CB1300 1300 - All  
2011 HONDA CB1300S 1300 - All  
2011 HONDA CB1300 1300 - All  
2010 HONDA CB1300S 1300 - All  
2010 HONDA CB1300 1300 - All  
2009 HONDA CB1300S 1300 - All  
2009 HONDA CB1300 1300 - All  
2008 HONDA CB1300S 1300 - All  
2007 HONDA CB1300S 1300 - All  
2007 HONDA CB1300 1300 - All  
2006 HONDA CB1300 1300 - All  
2005 HONDA CB1300 SUPER FOUR 1300 - All  
2004 HONDA CB1300 SUPER FOUR 1300 - All  
2003 HONDA CB1300 SUPER FOUR 1300 - All  
2002 HONDA CB1300 SUPER FOUR 1300 - All  
2001 HONDA CB1300 SUPER FOUR 1300 - All