The Injen EVO1501 Evolution sealed cold air intake for 2016–2020 Honda Civic Si 1.5T uses a one‑piece roto‑molded housing with Twist‑Lock technology and a SuperNano‑Web dry filter to increase airflow. It includes reinforced silicone couplers and stainless‑steel hardware, a clear inspection badge, and dyno‑proven power gains; the sealed design helps keep intake air cooler for better performance while remaining serviceable.
Injen 16-20 Honda Civic Si I4-1.5T Evolution Intake