We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Harley Davidson FLSTFI Fat Boy F/I Replacement Air Filters
Buy now from K&N's Online Store and get a 100% money back guarantee on any Harley Davidson FLSTFI Fat Boy F/I air filter!
- Designed to Increase Horsepower and Acceleration
- High Air Flow with Excellent Filtration
- Top Performance Accessory for Harley Davidson FLSTFI Fat Boy F/I Models
- K&N Million Mile Limited Warranty®
Order your K&N replacement air filter Factory Direct today! Help your Harley Davidson FLSTFI Fat Boy F/I run better. Fast and FREE SHIPPING with any Harley Davidson FLSTFI Fat Boy F/I air filter
Search By Vehicle
Search By Dimension
The item you added to cart DOES NOT FIT your
This item fits your
The item(s) below fits your vehicle
