Skunk2 307-05-9050 Ultra Series Race Intake Manifold 90mm Throttle Body

The Skunk2 Ultra Series Intake Manifold (Race Version) is a multi-piece cast aluminum performance intake manifold designed for built, high-horsepower naturally aspirated or forced induction engines. Its three-piece modular design allows easy disassembly, porting, and plenum volume changes through a removable plenum and optional plenum spacers.

The design builds on Skunk2's Pro Series intake manifold and was developed using computational fluid dynamics (CFD) software, along with in-house dyno and on-car testing. It is made from 356 aluminum alloy, CNC-machined for a precise fit, and individually inspected for quality assurance. A large 90mm throttle body opening, 87mm velocity stacks, and hi-velocity intake runners with smooth transitions are intended to reduce restriction and support torque and power gains.

Key Features:

• Three-piece modular design with removable plenum
• Available in 3.5L, 4.5L, and 5.5L configurations
• Optional billet aluminum plenum spacers in 1L or 2L sizes
• 6.5 tilted and tapered hi-velocity runners
• Raised 87mm velocity stacks with plenty of material to port
• Generously cast runner walls for porting
• Provisions for additional injectors on the bottom side of the runners
• Unique mounting flange fits all B Series VTEC heads
• 90mm throttle body flange in standard 5.0L Ford pattern
• 4 1/8 NPT, 3 1/4 NPT, and 1 OEM AIT port
• Hi-grade mounting hardware
• Includes thermal manifold flange gasket

Suited to a wide range of chassis configurations, not just dedicated race cars.