The Skunk2 Pro Series Intake Manifold for Honda B16/B17/B18C5 VTEC engines is a high-performance, high-flow upgrade designed to replace the restrictive factory manifold. Engineered from aircraft-grade A356 aluminum and cast as a one-piece design, this manifold delivers optimized midrange to top-end power by combining an oversized plenum with long, tapered runners that enhance both torque and peak horsepower.

Inspired by the legendary Honda Type R intake manifold, Skunk2 refined the design further through advanced flow analysis and testing, resulting in smoother transitions, improved runner entry geometry, and an enhanced Venturi effect. The result is superior airflow, throttle response, and overall engine efficiency — ideal for naturally aspirated or turbocharged setups.

Each Pro Series manifold is vacuum tested for leaks and features Skunk2’s signature nameplate for authenticity and professional finish. Whether you’re building a street car or a dedicated race machine, the Skunk2 Pro Series manifold offers unmatched quality, fitment, and performance.

Key Features:

• Cast from Aircraft-Grade A356 Aluminum for durability and strength

• Oversized Plenum for improved air distribution and power delivery

• Long, Tapered Runners to optimize mid-to-peak torque and top-end power

• Improved Runner Entry Geometry for enhanced airflow efficiency

• 70mm Throttle Body Opening, port-matchable up to 74mm

• Bolt-On Fitment compatible with all OEM sensors and fuel systems

• Vacuum Tested to ensure leak-free performance

• Ideal for Turbocharged and Naturally Aspirated Applications

• Direct Replacement for OEM Honda B16/B17/B18C5 manifold

Technical Specifications:

• Material: A356 cast aluminum

• Plenum Volume: Oversized, high-capacity design

• Throttle Body Opening: 70mm (can be port-matched to 74mm)

• Runner Design: Long, tapered for improved airflow velocity

• Mounting: Direct bolt-on using OEM gaskets and sensors

• Finish: Cast aluminum with Skunk2 Pro Series badge

• Application Type: Street, track, and forced induction setups

Vehicle Fitment:
Compatible with:

• Honda B16A/B

• Honda B17A

• Honda B18C / B18C5 (Type R)

(Applicable across multiple Honda/Acura chassis equipped with B-series VTEC engines, such as Civic SiR, CRX, Integra GS-R, and Type R models.)

Recommended Pairings:

• Pro Series Throttle Body – 70mm (P/N 309-05-0050)

• Composite Fuel Rail – B-Series (P/N 350-05-5000)

• Alpha Series Header – B-Series (P/N 412-05-1900)

• Pro Series Cam Gears – B-Series (P/N 304-05-5202 Silver / 304-05-5205 Black)

Included:

• (1) Skunk2 Pro Series Intake Manifold

• (1) Skunk2 Signature Nameplate

• (1) Hardware & Gasket Kit

• (1) Installation Guide