Wesfil Air Filter to suit Subaru Outback 3.6L Petrol AWD models built from 2016 to 2019, supplied ready to fit with no modification required. Panel dimensions are approximately 330mm x 160mm, with a moulded polyurethane frame that seals hard against the airbox. Service life of around 30,000km applies in normal conditions; halve that for dusty and rural use. The frame is fully sealed at the corners to stop unfiltered air bypassing the element. Restriction is measured at under 80kPa at rated engine airflow. Pleat count and depth are matched to the factory element so induction noise and airflow stay standard. Every unit is supplied new with a 12 Months / 20,000 km warranty against manufacturing defect.