External filters are used to help remove pollutants from the air flowing through the engine. Made of high quality material. Compatible with Hon da parts 17211-Z07-000 and 17218-Z07-000. for A4, EU2000IK1 A5, EU2000IK1 for A6, EU2000IK1 AC, EU2000IK1 AC1, EU2000IK1 AC2, EU2000IK1 AN, EU2000IK1 AN1, EU2000IK1 AN2, EU2000IT1 A1, EU2000IT1 A2400.
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