Skunk2 Ultra Series Street Intake Manifold Silver - Honda K20A2 - 307-05-0600The much anticipated Ultra Street Intake Manifold for the 02 05 Civic Si and 02 06 RSX RSX Type S, and or any swap using the K20A K20A2 K20Z1 K24A1 engines or cylinder heads has finally arrived! The Ultra Series is years of research and development, culminated in a multi piece cast aluminum intake manifold that offers advantages that Only a modular design could allow. Using the latest in CFD (Computational Fluid Dynamics) software; Skunk2 Racing has