The Skunk2 Pro Series Intake Manifold for the Honda B18C1 VTEC engine is designed to maximize airflow, improve throttle response, and unleash additional mid-to-top-end power. As a direct replacement for the restrictive OEM manifold, this Pro Series design delivers race-proven performance while maintaining street reliability.

Precision-cast from A356 aircraft-grade aluminum, this manifold features an oversized plenum and long, tapered runners that optimize power delivery throughout the RPM band. Skunk2 engineered this intake based on the legendary Type R manifold design but further improved the airflow by refining the runner-to-plenum transition and eliminating the factory secondary butterflies that restrict high-RPM performance.

Each unit is vacuum-tested, black wrinkle powder coated for corrosion resistance, and finished with the signature Skunk2 Pro Series nameplate—a mark of quality trusted by racers worldwide.

Key Features:

• High-Flow Design – Optimized for mid-to-peak power and torque gains

• Cast from Aircraft-Grade A356 Aluminum – Lightweight and durable

• Oversized Plenum with Long Tapered Runners – Increased airflow and throttle response

• Improved Runner-to-Plenum Transition – Enhanced venturi effect for smoother airflow

• 70mm Throttle Body Opening – Can be port-matched up to 74mm

• Eliminated Secondary Butterflies – Reduced restriction for high-RPM performance

• Durable Black Wrinkle Powder Coat Finish – Clean, race-ready appearance

• Compatible with OEM Sensors and Mounting Points

• Ideal for Turbocharged or Naturally Aspirated Builds

Technical Specifications:

• Material: A356 Aluminum

• Finish: Black Wrinkle Powder Coat

• Throttle Body Opening: 70mm (port-matchable to 74mm)

• Runner Design: Long Tapered

• Plenum Volume: Oversized for maximum power

• Installation: Direct bolt-on – fits OEM sensors and gaskets

Performance Benefits:

• Improved horsepower and torque across the entire powerband

• Eliminates restrictive factory butterfly valves

• Increased throttle response and airflow efficiency

• Designed for both street performance and race applications

Vehicle Fitment:
Compatible with:

• Honda B18C1 Engine

Common applications:

• 1994–2001 Acura Integra GS-R

• B-Series swap projects using B18C1 engines

Included:

• (1) Skunk2 Pro Series Intake Manifold (Black)

• (1) Gasket Set

• (1) Skunk2 Signature Nameplate

• Installation Hardware