K&N Performance Air Intake System (30-2605) Audi A1 If you require an atmo

If you require an atmo blow off valve please see FMDVPUNTA

Inside diameter: 30mm (1 3/16")

and throttle body hose

It can be used on both panel and cone filters with a foam construction

K&N Performance Air Intake System (30-2605) Audi A1 If you require an atmoThe K&N DRYFLOW Air Intake System replaces your vehicles restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicles engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engines RPM range. The DRYFLOW Air Intake System features an oil