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

  1. 2021 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    57-1139
    K&N
  2. 2021 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    57-1139S
    K&N
  3. 2021 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €364.49 Regular Price €485.89
    57-1138C
    K&N
  4. 2021 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €312.39 Regular Price €416.49
    57-1138
    K&N
  5. 2021 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €364.49 Regular Price €485.89
    63-1138C
    K&N
  6. 2021 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    63-1139
    K&N
  7. 2021 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €312.39 Regular Price €416.49
    63-1138
    K&N
  8. 2020 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €312.39 Regular Price €416.49
    63-1138
    K&N
  9. 2020 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €312.39 Regular Price €416.49
    57-1138
    K&N
  10. 2020 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €364.49 Regular Price €485.89
    57-1138C
    K&N
  11. 2020 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    57-1139
    K&N
  12. 2020 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    57-1139S
    K&N
  13. 2020 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €364.49 Regular Price €485.89
    63-1138C
    K&N
  14. 2020 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    63-1139
    K&N
  15. 2019 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €312.39 Regular Price €416.49
    63-1138
    K&N
  16. 2019 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €364.49 Regular Price €485.89
    57-1138C
    K&N
  17. 2019 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €312.39 Regular Price €416.49
    57-1138
    K&N
  18. 2019 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    57-1139
    K&N
  19. 2019 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    57-1139S
    K&N
  20. 2019 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €364.49 Regular Price €485.89
    63-1138C
    K&N
  21. 2019 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    63-1139
    K&N
  22. 2018 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    57-1139S
    K&N
  23. 2018 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    57-1139
    K&N
  24. 2018 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €364.49 Regular Price €485.89
    57-1138C
    K&N
  25. 2018 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €312.39 Regular Price €416.49
    57-1138
    K&N
  26. 2018 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €208.29 Regular Price €277.69
    63-1139
    K&N
  27. 2018 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €364.49 Regular Price €485.89
    63-1138C
    K&N
  28. 2018 Harley Davidson FLSL Softail Slim 107 CI air intake
    Special Price €312.39 Regular Price €416.49
    63-1138
    K&N
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