The 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 5-25bhp over the standard inlet manifold depending on your car model. This will fit a FN2 Civic Type-R , Accord CL7 Euro-R and the Honda K24 head. This is an ' uncut version' meaning it will fit the RBB style head but would need modifications to fit the PRA head.