Ducati Monster S4 Replacement Air Filters
Buy now from K&N's Online Store and get a 100% money back guarantee on any Ducati Monster S4 air filter!
- Designed to Increase Horsepower and Acceleration
- High Air Flow with Excellent Filtration
- Top Performance Accessory for Ducati Monster S4 Models
- K&N Million Mile Limited Warranty®
Order your K&N replacement air filter Factory Direct today! Help your Ducati Monster S4 run better. Fast and FREE SHIPPING with any Ducati Monster S4 air filter