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The K&N 57S series performance airbox for Opel, Vauxhall and Alfa Romeo applications replaces the factory airbox with an enclosed injection-molded housing and high-flow conical K&N filter. The design reduces restriction while smoothing airflow to deliver improved usable power across the rev range. Filters are reusable with periodic cleaning and K&N backs many systems with its Million Mile Limited Warranty.
K&N Performance Intake Kit for Opel / Vauxhall / Alfa Romeo
