Skunk2 Ultra Street Intake Manifold - L15B Raw Manifold

Skunk2 Racing Ultra Series Intake Manifolds represent the next generation of high-performance intake systems. The highly anticipated K-Series Street model is now available. Proudly engineered by the Skunk2 Racing team, the Ultra Series reflects years of research and development, culminating in a multi-piece cast aluminum intake manifold that offers advantages only a modular design can provide.

Building upon the performance legacy of the Pro Series Intake Manifold and utilizing the latest in CFD (Computational Fluid Dynamics) software, Skunk2 Racing has created a two-piece modular design that allows for easy disassembly, porting, and plenum volume changes through the use of a removable plenum and optional plenum spacers. In addition to CFD testing, the Ultra Series Intake Manifold has undergone extensive in-house dyno and on-car testing, resulting in a design that is less restrictive, yielding both torque and power gains well above many competitors.

Ultra Series Street Intake Manifolds are manufactured from high-grade 356 aluminum alloy, providing lightweight construction with added strength compared to sheet metal manifolds. Each manifold is CNC-machined for a precise fit and individually inspected for quality. The Ultra Series Street Intake Manifold features a 71mm throttle body opening and is constructed with thick walls and entry points, minimizing concerns of breakthrough when port matching.

The 1.82L plenum distributes even airflow to all four cylinders under dynamic load conditions. The placement and design of the rigorously flow-tested velocity stacks ensure maximum delivery of air to the cylinders. The large velocity stack and raised bell-mouth entries lead to long, 8.72-inch intake runners with smooth transitions, allowing the Ultra Series Street Intake Manifold to outperform the competition.

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