K&N Replacement Air Filter 10-13 Audi A8 Quattro 4.2L V8 (2 required) Fuel Delivery>Fuel Rails It utilizes continuous-filament fiber (CFF)

It utilizes continuous-filament fiber (CFF) acoustic material for sound control

When your vehicle demands performance

This is a very special idler

The 80A version found here is significantly more robust than the factory rubber units it replaces and significantly improves performance while retaining OEM levels of NVH isolation

and extended range toe cams from SPC

K&N Replacement Air Filter 10-13 Audi A8 Quattro 4.2L V8 (2 required) Fuel Delivery>Fuel Rails It utilizes continuous-filament fiber (CFF)K&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10 Year Million Mile Limited Warranty. K&N drop in replacement filters are designed to install easily into your