K&N Engine Air Filter: High Performance, Premium, Powersport Air Filter: Fits 1990-1999 HARLEY DAVIDSON (FLSTC, FLSTF, FLSTS, FXST, FXSTB, FXSTC, FLHR, FLHT, FLHTC, and other select models) HD-1390

K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your motorcycle, ATV, or Side-By-Side vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance for your journey. Join the millions of customers who have saved money and improved performance by upgrading to K&N filtration. Fitment Information: 1990-1999 HARLEY DAVIDSON FLSTC Heritage Softail Classic; 1990-1999 HARLEY DAVIDSON FLSTF Fat Boy; 1997-1999 HARLEY DAVIDSON FLSTS Heritage Springer; 1999 HARLEY DAVIDSON FXST Softail Standard; 1999 HARLEY DAVIDSON FXSTB Night Train; 1990-1999 HARLEY DAVIDSON FXSTC Softail Custom; 1990-1999 HARLEY DAVIDSON FXSTS Springer Softail; 1995-1998 HARLEY DAVIDSON FLHR Road King; 1995-1998 HARLEY DAVIDSON FLHT Electra Glide Standard; 1990-1998 HARLEY DAVIDSON FLHTC Electra Glide Classic; 1996-1998 HARLEY DAVIDSON FLSTN Heritage Softail Special; 1998 HARLEY DAVIDSON FLTR Road Glide; 1995-1998 HARLEY DAVIDSON FXD Dyna Super Glide; 1993-1998 HARLEY DAVIDSON FXDL Dyna Low Rider; 1996-1998 HARLEY DAVIDSON FXDS Dyna Convertible; 1993-1998 HARLEY DAVIDSON FXDWG Dyna Wide Glide; 1990-1997 HARLEY DAVIDSON FLHTCU Electra Glide Ultra Classic; 1995-1997 HARLEY DAVIDSON FXSTSB Bad Boy; 1993-1995 HARLEY DAVIDSON FLSTN Heritage Softail Nostalgia; 1990-1995 HARLEY DAVIDSON FLTCU Ultra Tour Glide Classic; 1994-1995 HARLEY DAVIDSON FXDS Dyna Low Rider Conv.; 1990-1994 HARLEY DAVIDSON FXLR Low Rider Custom; 1990-1993 HARLEY DAVIDSON FLHS Electra Glide Sport; 1993 HARLEY DAVIDSON FLHTC Classic Anniversary; 1993 HARLEY DAVIDSON FLHTCU Electra Glide Ultra Classic Annv.; 1990-1993 HARLEY DAVIDSON FLTC Tour Glide Classic; 1993 HARLEY DAVIDSON FLTCU Ultra Tour Glide Annv.; 1993 HARLEY DAVIDSON FXLR Low Rider Custom Annv.; 1990-1993 HARLEY DAVIDSON FXR Super Glide; 1990-1993 HARLEY DAVIDSON FXRS Low Rider Conv.; 1990-1993 HARLEY DAVIDSON FXRS-SP Low Rider Sport; 1992 HARLEY DAVIDSON FXDB Dyna Glide Daytona; 1992 HARLEY DAVIDSON FXDC Dyna Glide Custom; 1990-1992 HARLEY DAVIDSON FXRS Low Rider; 1990-1992 HARLEY DAVIDSON FXRT Sport Glide; 1991 HARLEY DAVIDSON FXDB Dyna Glide Sturgis; 1991 HARLEY DAVIDSON FXDB-D Dyna Glide Daytona; 1990 HARLEY DAVIDSON FLST Heritage Softail; 1990 HARLEY DAVIDSON FXST Softail

• ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle.
• ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
• EASY INSTALLATION: Pre-oiled and ready to install. One of the easiest and most cost-effective upgrades for your motorcycle or ATV for quick performance gains.
• SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.
• ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters.