Precision Works Billet Intake Manifold Kit – Honda B-Series & K-Series

Precision Works Billet Intake Manifold Kit – Honda B-Series & K-Series

The Precision Works Billet Intake Manifold Kit is a high-performance airflow upgrade engineered for Honda B-Series and K-Series engines. Designed for serious street and race applications, this billet intake manifold delivers increased airflow capacity, improved cylinder distribution, and enhanced throttle response to support higher horsepower and torque builds.

Constructed from precision CNC-machined billet aluminum, this manifold features smooth tapered runners and a high-flow internal design to maximize efficiency and performance. Each kit is engineered and tested using CAD and CFD analysis to ensure proper flow characteristics and consistent results under demanding conditions.

This is a complete manifold solution that includes a fuel rail and required hardware, allowing flexible injector configurations and plenum routing options depending on your setup.

Key Features

• Precision CNC-machined billet aluminum construction

• Engineered in the USA

• CAD designed and CFD tested for optimized airflow

• Smooth tapered runners for improved flow efficiency

• Large runner volume for increased horsepower and torque potential

• Configurable for side-feed or center-feed plenum layout

• Standard 8-injector configuration with single fuel rail

• Includes billet injector dummies for 4-injector setups

• Compatible with Skunk2 Ultra Plenum (sold separately)

• Includes fuel rail and installation hardware

Compatibility

Fits:

• Honda B-Series VTEC engines (including B16A, GS-R, Type R)

• Honda K-Series engines (excluding K20C)

Additional Compatibility:

• K-Series version can be used on H-Series engines when paired with a K2H adapter

Does Not Fit:

• Non-VTEC B-Series heads

• K20C engines

Installation Notes

• Throttle body is not included

• Skunk2 Ultra Plenum is not included

• Professional installation recommended for best results

• Intended for performance applications where proper tuning and supporting mods are in place