Why Upgrade the Intake Manifold?
Factory manifolds are designed for:
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Emissions compliance
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Mid-range torque
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Cost efficiency
An upgraded 70MM aluminum manifold provides:
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Increased plenum volume
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Improved high-RPM airflow
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Support for larger throttle bodies
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Better top-end horsepower potential
It’s built for performance—not economy tuning.
Product description
Key Features
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Cast or fabricated aluminum construction
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Black powder-coated finish
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70MM throttle body opening
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Larger plenum design
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High-flow runner configuration
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Compatible with standalone or tuned ECUs
Translation: more air, more RPM potential.
Ideal Applications
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High-revving NA K-series builds
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Turbocharged K20/K24 setups
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Track-focused Civic / RSX builds
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Engine-swapped RWD platforms
On a properly tuned setup, this manifold helps unlock top-end gains.
Vehicle / Engine Compatibility
Compatible with:
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Honda K20Z3
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Honda K24A2
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Other K20 / K24 variants (verify port configuration)
⚠️ May require throttle body upgrade, MAP relocation, or tuning adjustments.
Performance Considerations
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Best paired with larger throttle body
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Requires ECU tuning for optimal results
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Gains most noticeable at higher RPM
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Not always ideal for stock daily-only builds
This is for people chasing numbers—not just intake sound.
Final Verdict
If you’re pushing your K-series beyond stock limits, the 70MM Aluminum Intake Manifold (Black) supports improved airflow and higher RPM performance. Clean finish, performance-focused design, and ready for serious builds.
Because stock manifolds were never meant for 8,500 RPM pulls.
Jadon –
missing ports and leftover shavings i doubt this is machined well
Mohamed Shameem Khan –
Casting quality is excellent. The flange holes are not drilled correctly and all the holes needed to be slotted get the manifold to line up on the cylinder head
Great part!! Nice looking and fit great –
Great part for the money had to clean up some of the weld but worth it
byron –
Started leaking everywhere doesn’t hold pressure either and the port don’t match the head
bill.goldston –
The injector holes are to small to fit the injectors properly
Wifeandmama –
poor casting and didnt fit correctly waste of time
Flynn –
This is a straight up skunk2 knockoff and a cheap one at that. Even product description is a text book case of plagiarism. Don’t waste your money. I doubt it can even hold up to the pressure and will collapse in on its self. Shout out to my homie Tony from lc signs
K24 assassin –
Not ideal
Doesnt fit the throttle body, other then that its a good paperweight