Ducati Monster S4R Replacement Air Filters
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- Designed to Increase Horsepower and Acceleration
- High Air Flow with Excellent Filtration
- Top Performance Accessory for Ducati Monster S4R Models
- K&N Million Mile Limited Warranty®
Order your K&N replacement air filter Factory Direct today! Help your Ducati Monster S4R run better. Fast and FREE SHIPPING with any Ducati Monster S4R air filter