Cast Aluminium Intake Manifold for Honda K Series 72mm Throttle Body

This cast aluminium intake manifold is engineered for Honda K series engines, offering a direct fit for 06-11 Civic Si and 04-08 Acura TSX Base models. It addresses the need for improved airflow in both turbocharged and naturally aspirated setups. The 72mm throttle body opening can match up to 76mm ports, and the design incorporates a tapered air chamber and a flow channel similar in length to RBC but with larger holes. The manifold accepts OEM throttle bodies and those up to 76mm, making it a practical upgrade for enthusiasts seeking mid- and high-end power gains. The cast aluminium construction is available in silver or black. Before purchase, always verify compatibility with your specific vehicle using the reference table as a guide.

Features and Construction

The manifold is built from cast aluminium and designed to improve airflow through a larger tapered air chamber and a special tapered design. It retains medium power while increasing and accelerating airflow for high-end power. The 72mm throttle body opening is a key specification.

Material and Build

The intake manifold is made of cast aluminium, a material known for its strength and heat resistance. This construction supports the structural integrity needed for engine applications. The manifold is available in silver or black, allowing some choice in engine bay appearance. The cast aluminium body is designed to withstand the conditions of turbocharged and naturally aspirated environments, though no specific performance ratings are provided in the source data.

Size and Practical Fit

The throttle body opening measures 72mm and can match up to 76mm ports, providing flexibility for different throttle body sizes. The internal flow channel is similar in length to RBC but with larger holes, and the tapered air chamber contributes to the airflow characteristics. These dimensions are specific to the K series engine layout, and the manifold is only compatible with 06-11 Civic Si K series engines. No other measurements are supplied, so check your vehicle's specifications.

Uses and Placement

This manifold is intended for automotive enthusiasts and professionals working with Honda K series engines. It can be used in turbocharging and naturally aspirated applications, offering a direct fit for the specified models. The design aims to enhance airflow and power delivery.

Event or Professional Use

In professional or competitive settings, the manifold can be part of a performance build for the 06-11 Civic Si or 04-08 Acura TSX Base. Its compatibility with OEM throttle bodies and up to 76mm units allows for integration with existing setups. The improved airflow and Venturi effect are intended to support mid- and high-end power, which can be beneficial in track or dyno tuning scenarios. However, actual gains depend on the overall build and tuning.

Everyday Home Use

For daily driving, the manifold can replace the factory unit on compatible vehicles, potentially improving engine breathing. The cast aluminium construction and silver or black finish blend with the engine bay. Installation is described as easier, but it still requires mechanical knowledge. Always confirm that your vehicle matches the compatibility list before attempting installation.

Benefits and Buying Value

The manifold offers practical benefits such as improved airflow, a larger throttle body opening, and compatibility with common throttle body sizes. Its cast aluminium build provides a solid component for the intake system.

Reuse and Low Maintenance

The cast aluminium material is resistant to corrosion and wear under normal engine conditions, though specific maintenance guidelines are not provided. Routine inspections for cracks or loose fittings are advisable. The manifold does not include serviceable parts, so maintenance is minimal beyond keeping it clean.

Why Choose This Product

This intake manifold stands out for its specific design for Honda K series engines, with a 72mm throttle body opening and compatibility up to 76mm. The tapered air chamber and flow channel design aim to balance mid-range power with high-end airflow. It is a direct-fit option for 06-11 Civic Si and 04-08 Acura TSX Base, and it accepts OEM throttle bodies. The cast aluminium construction and colour options add practical value for those seeking a functional upgrade.