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K&N Cold Air Intakes for the Harley Davidson FLSTF Fat Boy

Harley Davidson FLSTF Fat Boy Aftermarket Cold Air Intakes

Buy now from the K&N Store and get a 100% money back guarantee on any cold air intake!
  • Designed to increase power and torque
  • K&N Million Mile Limited Warranty®
  • Replaces restrictive factory air intake system
  • Easy to install performance
Add more horsepower to your Harley Davidson FLSTF Fat Boy with a K&N cold air intake.
K&N Powersports Cold Air Intake System
Vehicle DescriptionPart NumberProduct Image 
2017 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2017 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1122

Est. Power Gain
12.92 HP @ 4612 RPM
63-1122 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $470.99
Factory Direct Price: $269.99
2017 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2017 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1122P

Est. Power Gain
12.92 HP @ 4612 RPM
63-1122P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $511.99
Factory Direct Price: $292.99
2017 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2017 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1134

Est. Power Gain
6.11 HP @ 4907 RPM
63-1134 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2016 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2016 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1122

Est. Power Gain
12.92 HP @ 4612 RPM
63-1122 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $470.99
Factory Direct Price: $269.99
2016 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2016 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1122P

Est. Power Gain
12.92 HP @ 4612 RPM
63-1122P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $511.99
Factory Direct Price: $292.99
2016 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2016 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1134

Est. Power Gain
6.11 HP @ 4907 RPM
63-1134 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2015 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2015 Harley Davidson FLSTF Fat Boy 103 CI FIPK Cold Air Intake
57-1125

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125 HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $475.00
Factory Direct Price: $271.99
2015 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2015 Harley Davidson FLSTF Fat Boy 103 CI FIPK Cold Air Intake
57-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125P HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $510.00
Factory Direct Price: $291.99
2015 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2015 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1125

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $488.99
Factory Direct Price: $279.99
2015 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2015 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $512.49
Factory Direct Price: $292.99
2015 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2015 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1137

Est. Power Gain
5.35 HP @ 4758 RPM
63-1137 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2014 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2014 Harley Davidson FLSTF Fat Boy 103 CI FIPK Cold Air Intake
57-1125

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125 HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $475.00
Factory Direct Price: $271.99
2014 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2014 Harley Davidson FLSTF Fat Boy 103 CI FIPK Cold Air Intake
57-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125P HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $510.00
Factory Direct Price: $291.99
2014 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2014 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1125

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $488.99
Factory Direct Price: $279.99
2014 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2014 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $512.49
Factory Direct Price: $292.99
2014 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2014 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1137

Est. Power Gain
5.35 HP @ 4758 RPM
63-1137 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2013 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2013 Harley Davidson FLSTF Fat Boy 103 CI FIPK Cold Air Intake
57-1125

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125 HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $475.00
Factory Direct Price: $271.99
2013 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2013 Harley Davidson FLSTF Fat Boy 103 CI FIPK Cold Air Intake
57-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125P HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $510.00
Factory Direct Price: $291.99
2013 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2013 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1125

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $488.99
Factory Direct Price: $279.99
2013 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2013 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $512.49
Factory Direct Price: $292.99
2013 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2013 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1137

Est. Power Gain
5.35 HP @ 4758 RPM
63-1137 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2012 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2012 Harley Davidson FLSTF Fat Boy 103 CI FIPK Cold Air Intake
57-1125

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125 HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $475.00
Factory Direct Price: $271.99
2012 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2012 Harley Davidson FLSTF Fat Boy 103 CI FIPK Cold Air Intake
57-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125P HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $510.00
Factory Direct Price: $291.99
2012 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2012 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1125

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $488.99
Factory Direct Price: $279.99
2012 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2012 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $512.49
Factory Direct Price: $292.99
2012 Harley Davidson FLSTF Fat Boy 103 CI - Exc. Lower Fairings
Motorcycle
2012 Harley Davidson FLSTF Fat Boy 103 CI Aircharger Cold Air Intake
63-1137

Est. Power Gain
5.35 HP @ 4758 RPM
63-1137 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2011 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2011 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125 HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $475.00
Factory Direct Price: $271.99
2011 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2011 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125P HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $510.00
Factory Direct Price: $291.99
2011 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2011 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $488.99
Factory Direct Price: $279.99
2011 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2011 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $512.49
Factory Direct Price: $292.99
2011 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2011 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1137

Est. Power Gain
5.35 HP @ 4758 RPM
63-1137 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2010 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2010 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125 HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $475.00
Factory Direct Price: $271.99
2010 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2010 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125P HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $510.00
Factory Direct Price: $291.99
2010 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2010 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $488.99
Factory Direct Price: $279.99
2010 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2010 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $512.49
Factory Direct Price: $292.99
2010 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2010 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1137

Est. Power Gain
5.35 HP @ 4758 RPM
63-1137 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2009 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2009 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125 HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $475.00
Factory Direct Price: $271.99
2009 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2009 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125P HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $510.00
Factory Direct Price: $291.99
2009 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2009 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $488.99
Factory Direct Price: $279.99
2009 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2009 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $512.49
Factory Direct Price: $292.99
2009 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2009 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1137

Est. Power Gain
5.35 HP @ 4758 RPM
63-1137 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2008 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2008 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125 HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $475.00
Factory Direct Price: $271.99
2008 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2008 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125P HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $510.00
Factory Direct Price: $291.99
2008 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2008 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $488.99
Factory Direct Price: $279.99
2008 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2008 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $512.49
Factory Direct Price: $292.99
2008 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2008 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1137

Est. Power Gain
5.35 HP @ 4758 RPM
63-1137 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99
2007 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2007 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125 HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $475.00
Factory Direct Price: $271.99
2007 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2007 Harley Davidson FLSTF Fat Boy 96 CI FIPK Cold Air Intake
57-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
57-1125P HARLEY DAVIDSON FLSTF Fat Boy FIPK Cold Air Intake
List Price: $510.00
Factory Direct Price: $291.99
2007 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2007 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $488.99
Factory Direct Price: $279.99
2007 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2007 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1125P

Est. Power Gain
7.78 HP @ 4953 RPM
63-1125P HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $512.49
Factory Direct Price: $292.99
2007 Harley Davidson FLSTF Fat Boy 96 CI - Exc. Lower Fairings
Motorcycle
2007 Harley Davidson FLSTF Fat Boy 96 CI Aircharger Cold Air Intake
63-1137

Est. Power Gain
5.35 HP @ 4758 RPM
63-1137 HARLEY DAVIDSON FLSTF Fat Boy Aircharger Cold Air Intake
List Price: $399.99
Factory Direct Price: $339.99