K&N Engineering knn57-0515

The K&N 57i performance intake kit for Audi A4 2.8L V6 replaces the restrictive factory airbox with a vehicle-specific induction system and large washable/reusable filter. 57i kits increase airflow across the RPM range and provide more surface area for longer service life between cleanings—up to 100,000 miles—while adapters connect the filter to the throttle body. Note: 57i Series intakes are not legal in California and similar states.

K&N Audi A4 2.8L V6 Performance Intake Kit