Skunk2 Pro Series H22A/F20B Intake Manifold

Skunk2 Pro Series Intake Manifold for H22A / F20B Engines

The Skunk2 Pro Series Intake Manifold (307-05-0300 / 307-05-0301) is a cast aluminum bolt-on upgrade built specifically for H22A and F20B engines in the 1992-2001 Honda Prelude and 1997-2001 Honda Accord SiR / Torneo. Skunk2 was first to market with a high-flow cast aluminum intake manifold for the H-series platform, and this design has been validated across street, track, and forced induction builds for over 15 years.

The stock H22A dual-stage manifold uses IAB butterflies and an EGR circuit that restrict airflow at high RPM. The Pro Series replaces that assembly with a single-stage design featuring a 70mm throttle body opening, a larger plenum volume, and tapered long-runners that maintain runner velocity across a broader RPM range. The result is a measurable improvement in mid-range torque and top-end horsepower without sacrificing street drivability. The thicker cast walls also leave material for port matching or additional porting work if you are building for higher power targets.

This manifold is available in silver (SK2-307-05-0300) and black anodized (SK2-307-05-0301) finishes. Both variants share the same core casting and fitment dimensions.

Key Features

• 70mm throttle body opening - direct fit for 70mm aftermarket TB or bored OEM unit
• Larger plenum volume over stock for improved high-RPM charge fill
• Tapered, high-velocity runners tuned for mid-range torque and top-end power
• Eliminates IAB butterflies and EGR circuit - simplifies engine bay and removes flow restrictions
• Thick-wall cast aluminum construction - leaves material for port matching or custom porting
• Compatible with turbocharged and naturally aspirated H22A / F20B builds
• Includes high-grade mounting hardware
• Available in silver (307-05-0300) and black anodized (307-05-0301)

Fitment Note

Direct bolt-on for H22A and F20B engines in the Honda Prelude (1992-2001) and Honda Accord SiR / Torneo (1997-2001). Not a direct fit for Civic or Integra chassis without clearance modifications due to engine bay geometry differences on the H-series swap. If you are running an H22A swap into a Civic or Integra, verify clearance before ordering.

What's Included

• Skunk2 Pro Series intake manifold assembly (silver or black anodized)
• High-grade mounting hardware
• Manifold only - OEM or aftermarket intake manifold gasket required (sold separately)
• Fuel rail, injectors, throttle body, and intake components not included