K&N Performance Air Intake System (57S-2003) Audi > Ur-Quattro featuring some of our best

featuring some of our best cars and individuals that have made the Forge Nation what it is today

5mm bore and dual 5 stud bolt pattern for both 100 and 112mm PCD fitments

rubber base and comes with a deflector shield to protect against engine heat

Version: DDC – ECU

K&N Performance Air Intake System (57S-2003) Audi > Ur-Quattro featuring some of our bestThe K&N Performance Airbox is designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. Replacing the restrictive factory air filter and air box allows your engine to inhale more air than with the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. A fully enclosed injection molded air box connects to the factory air intake hose. The removable lid