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The K&N 57S performance airbox for 2004–2010 Opel Astra H 2.0L replaces the restrictive factory airbox with an injection-molded enclosure and a custom-shaped high-flow K&N air filter. The system smooths and straightens airflow for measurable power and acceleration gains, features a removable lid for easy service, and the filter can last up to 100,000 miles between cleanings; supported by K&N's Million Mile Limited Warranty.
K&N 04-10 Opel Astra H 2.0L F/l 57i Series Performance Intake Kit
