The Mishimoto silicone induction hose for 2007–2010 Honda Civic Si replaces the accordion-style stock airbox hose with a five-layer silicone unit featuring heat-resistant embedded fibers and molded steel rings for added rigidity. It fits the stock airbox, smooths internal airflow to the throttle body to support increased power and throttle response, installs in under 30 minutes and ships with Mishimoto’s lifetime warranty.
Mishimoto 07-10 Honda Civic Si Black Silicone Induction Hose Kit