K&N's 57S Performance Airboxes increase horsepower and acceleration by dramatically reducing air flow restriction caused by the original factory design. They come with K&N's Million-Mile Limited Warranty. 57S series airboxes replace the factory air filter housing with a fully enclosed injection modified air box containing a reusable K&N air filter. Installation is easy as they are specifically engineered to use factory holes and mounting points. No additional hardware, cutting or drilling is required.

COMPLETE AIRBOX ASSEMBLY
Replaces the factory air filter housing with a fully enclosed injection modified air box to reduce sound and cool air. The airbox comes with a removable lid for servicing and a custom engineered Velocity Stack (Velum) designed to smooth and straighten airflow for added power.

EASY INSTALLATION
Specifically engineered to use factory holes and mounting points so no additional hardware, cutting or drilling is required.

This intake system adds power that you can feel on your TSI engine, and increases throttle response throughout the entire rpm range. The air filter is the standard K&N washable cone filter, so there is no need to ever purchase a new filter.

K&N 57i Series Kits > Performance Intake Kit - 57S-9501



Installation Instructions - VW
Installation Instructions - Audi