K&N Replacement Air Filter (33-2374) Audi > RS4 > (B7) V8 The OEM replacement is only

The OEM replacement is only available with the hard pipes included

This kit totally replaces this plastic pipe from turbo to manifold with a silicone hose (available in a choice of colours)

(OEM Part Number: 1K0407152BG)

Axle-back-system L/R: Sport exhaust

we achieved gains of 5 bhp and 6lbft torque throughout the rev range which is extremely pleasing results not to mention the improved sound track our intake gives this punchy little 1

K&N Replacement Air Filter (33-2374) Audi > RS4 > (B7) V8 The OEM replacement is onlyK&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 No Hassle Lifetime Limited Warranty. K&N drop in replacement filters are designed to install easily into your