Harley Davidson FLS Softail Slim Performance Cold Air Intakes

Buy now from the K&N Store and get a 100% Money Back Guarantee on any cold air intake system!

  • Designed to increase power and torque
  • K&N Million Mile Limited Warranty®
  • Replaces restrictive factory air intake system
  • Easy to install performance, usually in 90 minutes or less

Add more horsepower to your Harley Davidson FLS Softail Slim with a K&N cold air intake system. K&N Harley Davidson FLS Softail Slim cold air intakes are easy to install and add power & acceleration while protecting the vehicle's engine.

  1. 2017 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €266.79 Regular Price €355.79
    57-1122
    K&N
  2. 2017 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €316.39 Regular Price €421.89
    57-1122P
    K&N
  3. 2017 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €266.79 Regular Price €355.79
    57-1134
    K&N
  4. 2017 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €213.49 Regular Price €284.59
    57-1134S
    K&N
  5. K&N
  6. K&N
  7. 2016 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €266.79 Regular Price €355.79
    57-1122
    K&N
  8. 2016 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €316.39 Regular Price €421.89
    57-1122P
    K&N
  9. 2016 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €266.79 Regular Price €355.79
    57-1134
    K&N
  10. 2016 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €213.49 Regular Price €284.59
    57-1134S
    K&N
  11. 2015 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €221.09 Regular Price €294.79
    57-1137S
    K&N
  12. 2015 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €266.79 Regular Price €355.79
    57-1137
    K&N
  13. 2015 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €320.19 Regular Price €426.89
    57-1125P
    K&N
  14. 2015 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €320.19 Regular Price €426.89
    57-1125
    K&N
  15. 2014 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €320.19 Regular Price €426.89
    57-1125P
    K&N
  16. 2014 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €320.19 Regular Price €426.89
    57-1125
    K&N
  17. 2014 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €266.79 Regular Price €355.79
    57-1137
    K&N
  18. 2014 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €221.09 Regular Price €294.79
    57-1137S
    K&N
  19. 2013 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €320.19 Regular Price €426.89
    57-1125
    K&N
  20. 2013 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €320.19 Regular Price €426.89
    57-1125P
    K&N
  21. 2013 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €266.79 Regular Price €355.79
    57-1137
    K&N
  22. 2013 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €221.09 Regular Price €294.79
    57-1137S
    K&N
  23. 2012 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €320.19 Regular Price €426.89
    57-1125
    K&N
  24. 2012 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €320.19 Regular Price €426.89
    57-1125P
    K&N
  25. 2012 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €266.79 Regular Price €355.79
    57-1137
    K&N
  26. 2012 Harley Davidson FLS Softail Slim 103 CI air intake
    Special Price €221.09 Regular Price €294.79
    57-1137S
    K&N
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