DUKE250/390 18-22 Modified Air Intake Filter, Performance Air Filter Replacement, Street Naked Bike Engine Protection Parts

High-flow reusable air filter fits KTM DUKE250 / DUKE390 2018-2022. Traps dust & sand, improves intake airflow, boosts throttle response, direct airbox replacement for routine maintenance.

Upgrade your KTM DUKE250 / DUKE390 (2018-2022) intake system with this high-performance air filter. The stock paper filter clogs easily after riding in dusty or urban environments, restricting airflow and weakening throttle response. This upgraded air filter optimizes air intake while offering excellent filtration.

Constructed with multi-layer filter media and heavy rubber sealing edge. It effectively captures fine dust, sand, grit and debris to prevent abrasive particles entering the cylinder, protecting piston and engine internals from premature wear. The high-flow design increases air volume into combustion chamber, enhances throttle sensitivity and makes fuel combustion more complete, bringing smoother acceleration.

Washable and reusable design. After getting dirty, simply clean and re-oil for repeated use, much more cost-effective than disposable paper filters. The rubber gasket creates tight seal inside air box, preventing unfiltered air bypass.

Precision moulded shape perfectly matches the factory airbox housing. Direct drop-in installation without modification. Ideal replacement for regular service, street commuting and touring. It is a must-have maintenance and performance upgrade part for KTM Duke riders.

• ✅ High flow air filter dedicated for KTM DUKE250 / DUKE390 2018-2022
• ✅ Multi-layer filter media blocks dust, sand and grit to protect engine
• ✅ Optimized intake airflow for sharper throttle and smoother acceleration
• ✅ Flexible rubber seal ensures airtight fit inside factory airbox
• ✅ Washable & reusable design, economical compared to paper filters
• ✅ Drop-in installation, simple OEM replacement for maintenance