PRL Honda Civic Si FE1 High Volume Intake System features a rather large and efficient air duct through the front bumper/grill from the factory. We elected to retain the factory air guides, and utilize them in our HVI design. Our engineers decided to take this one step further, though. In an effort to promote maximum airflow volume, our HVI comes standard with it's own injection molded High Volume Inlet Duct that attaches to the air box with OE-style clips and seals against the factory rubber seal/guide on the hood. We have also integrated a provision at the bottom of our air box for enthusiasts looking to turn this intake into a true cold air intake by installing our High Volume "Plus" Cold Air Intake Duct!
 
The High Volume "Plus" Cold Air Intake Duct ($59) is transforms our standard High Volume Intake System into a true cold air intake by introducing cool air through the inner fender liner, which increases airflow and lowers intake air temperatures. This design also increases intake system efficiency when driving in low pressure (drafting) zones. The HDPE rotomolded duct also helps to reduce heat-soak.
 
Important Notes:
NO ECU CALIBRATION REQUIRED
10+ Horsepower & Torque Gains!
 
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