K&N Performance Air Intake System (57S-2003) Audi > Ur-Quattro contact us and we’ll add

contact us and we’ll add it for you

3) ensures compliance with road regulations

Results showed that we achieved the best gains with the PRORam performance filter

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

K&N Performance Air Intake System (57S-2003) Audi > Ur-Quattro contact us and we’ll addThe 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