HONDA RRC Intake Manifold. The famous RRC manifold is a genuine Honda part. This is the ultimate inlet manifold for the K-series engine and is found as standard on the Japanese Civic Type R FD2. It will bolt straight on without any modifications, however once fitted the car will need mapping. Expect gains of around 5-10bhp over the standard FN2 inlet manifold. This is the 70mm hand ported throttle body opening version.