Skunk2 Ultra Street Intake Manifold - Honda K-Series

307-05-0600 - Skunk2 Ultra Street Intake Manifold for Honda K-Series engines

Developed for modified naturally aspirated builds and mild turbo or supercharged setups, the Skunk2 Ultra Street Intake Manifold uses a modular two-piece cast-aluminum design to support strong airflow, easy servicing, and future plenum changes.

Skunk2 combined CFD development with in-house dyno testing to create smooth, high-velocity runners and even airflow distribution across all four cylinders. The manifold is CNC-machined from lightweight 356 aluminum alloy and individually inspected for fit and quality.

Key Features

• Modular two-piece design with removable, rotatable plenum
• Driver-side or passenger-side throttle-body mounting
• 1.8L plenum volume
• 6.85-inch tapered high-velocity runners with raised velocity-stack entries
• 71mm throttle-body opening
• Generous runner-wall thickness for port matching
• Lightweight 356 aluminum-alloy construction
• High-grade mounting hardware and thermal gasket included
• Two 1/4-inch NPT and two 1/8-inch NPT accessory ports

Vehicle Fitment

• 2002–2005 Honda Civic Si 2.0L
• 2002–2006 Acura RSX 2.0L Base and Type S
• K-Series swaps using K20A, K20A2, K20Z1, or K24A1 engines or cylinder heads

Manufacturer part number: 307-05-0600

Optional billet-aluminum plenum spacer is available separately in a 0.5L size. Confirm vehicle and swap compatibility before ordering.