K&N Audi R8 V8 Filters
K&N R8 V8 Air Filter
Audi R8 V8 4.2 F/I 2009-2013, E Series Air Filter by K&N®. Get better performance, superior engine protection and more economical operation just by changing your air filter. The K&N air filter gives you increased airflow without sacrificing filtration ability. It's the last air filter you'll ever buy for your car.