O2 RUSH High‑Performance Adventure Bike & ATV/SXS Air Filter - Fits KTM 390 Adventure (2025+) – Washable, Reusable, Maximum Airflow & Engine Protection - CNC‑Pre-Oiled Air Filter BikeMaster The flat head features a

The flat head features a standard 5/8 x 11 thread for seamless compatibility with Topcon RL series lasers

while the flexible oil drain system ensures reliable turbo lubrication under the unique mounting conditions of Ford Cummins swaps

Made from high-impact PA6 polyamide plastic

Fast set-up with magnetic mount

O2 RUSH High‑Performance Adventure Bike & ATV/SXS Air Filter - Fits KTM 390 Adventure (2025+) – Washable, Reusable, Maximum Airflow & Engine Protection - CNC‑Pre-Oiled Air Filter BikeMaster The flat head features aThe O2 Rush O2R 1459 is a premium Saw Tooth foam air filter engineered specifically for the KTM 390 Adventure and 390 Adventure R models (2025 2026). Built with cutting edge Australian technology, this filter is perfect for adventure riders who demand both increased engine performance and reliable protection in dusty, sandy, or challenging off road environments. O2 Rushs exclusive Saw Tooth foam profile dramatically increases filter surface area,