
The Weapon R Secret Weapon intake for 1999–2000 Honda Civic Si coupe (DOHC 1.6L) is a direct-fit intake upgrade intended to improve airflow into the engine. Styled for the Civic Si application, it replaces the factory intake path to provide a less restrictive route for incoming air and is aimed at owners seeking a straightforward bolt-on intake solution specific to the 99–00 Si coupe.
Weapon R 99-00 Honda Civic Si Coupe DOHC 1.6L Secret Weapon Intake