Skunk2 Racing Ultra Street Series Intake Manifold + 70mm Throttle BodyThe 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 created a two-piece modular design that allows for easy disassembly, porting, and plenum volume changes through the use of a removable plenum lid and optional plenum spacers. In addition to CFD testing, the Ultra Series Intake Manifold has undergone extensive in-house dyno testing which has led to a design that is less restrictive, yielding both torque and power gains well over many of the competitors.
Skunk2 Racing Ultra Street Intake Manifolds are cast-aluminum, manufactured from
high-grade 356 aluminum alloy for strength and lightweight. Each manifold is
CNC-machined for a precise fit, and individually inspected for quality
assurance. The Ultra Series Street manifold features a generous 74mm throttle
body opening and is constructed with thick walls at entry, minimizing concerns
of breakthrough when port matching. Intense planning and design went into the
plenum to distribute even airflow to all four cylinders under dynamic load
conditions. Placement and design of the velocity stacks were rigorously flow
tested to ensure maximum delivery of air to the cylinder. Large velocity stack
raised bell mouth entries lead to 8.72” long intake runners with smooth
transitions allowing the Ultra Street Intake Manifold to really move some air! Features
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