The K&N Air Filter is a permanent hi-performance air filter that can be cleaned, re-oiled, and used many times over. This low restriction air filter allows the engine to breathe more freely, which means a better throttle response as well as more power throughout the rev range. All K&N factory replacement filters are 50-state legal.

Retains OE airbox and replaces OE air filter. Filters are shipped pre-oiled. To clean the filter, purchase the K&N recharger kit #99.5000.

Actual part is shown in the photo.

Quality Performance K&N air filter replacement drop-in for all 2002-up Audi A4 B6/B7.

Part #’s

06C-133-842 / 06C 133 842 / 06C133842

06C-133-843 / 06C 133 843 / 06C133843

079-133-843-A / 079133843 A / 079 133 843 A / 079133843A