The Wesfil Air Filter is a direct-fit replacement for BMW 3 Series and BMW X3 2.0L Turbo Petrol models built from 2016 to 2025. Restriction is measured at under 90kPa at rated engine airflow. The Cellulose media traps fine dust without choking airflow, which matters on Australian gravel and unsealed roads. The frame is fully sealed at the corners to stop unfiltered air bypassing the element. Pleat count and depth are matched to the factory element so induction noise and airflow stay standard. Service life of around 40,000km applies in normal conditions; halve that for dusty and rural use. Panel dimensions are approximately 250mm x 240mm, with a moulded polyurethane frame that seals hard against the airbox. Every unit is supplied new with a 24 Months warranty against manufacturing defect.