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Mishimoto's performance air intake for the 2017–2020 Honda Civic Si is a direct-fit kit that improves airflow and throttle response while adding under-hood style. It uses a steel-wire-reinforced silicone intake arm, a black powder-coated steel airbox to protect the Mishimoto high-performance filter from heat and reduce hydrolock risk, and a venturi-style MAF housing for smoother airflow. Dyno-proven gains are about 4 whp and 4 lb-ft on the stock tune, and the kit includes Mishimoto's Lifetime Warranty.
Mishimoto 2017+ Honda Civic (SI ONLY) Performance Air Intake Kit - Black
