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The K&N Typhoon cold-air intake for Volvo S40 and related models (2004–2005) replaces the factory airbox with mandrel-bent aluminum tubing and a washable High-Flow filter to smooth airflow and increase usable power. The system directs cool air into the throttle body for improved acceleration, often installs in about 90 minutes, and the oversized filter can reach long service intervals depending on driving conditions. Check K&N application details for fitment.
K&N Performance Intake Kit TYPHOON; VOLVO S40, 2004-2005
