Skunk2 Ultra Series Street K20A/A2/A3 K24 Engines Intake ManifoldSkunk2 Racing Ultra Series Intake Manifolds are the next generation of high performance intake manifolds. The much anticipated K Series Street model is now available. Proudly presented by the Skunk2 Racing engineering team, 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. Building upon the performance legacy of the Pro Series