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Upgrade your Smart Fortwo with the K&N 33-2417 High-Flow Air Filter. Washable, reusable design ensures improved airflow and performance.
Upgrade your Smart Forfour or Fortwo (2016-2018) with K&N 33-3043 High-Flow Air Filter for improved airflow and performance.
Upgrade your vehicle’s performance with the K&N E-9257 High-Flow Air Filter. Washable, reusable, and engineered for superior airflow.