Skunk2 Ultra intake manifold with ZDX throttle body 8th gen Honda Civic Si

Take your 8th Gen Civic Si performance to the next level with this high-flow Skunk2 Ultra Intake Manifold paired with a ZDX Throttle Body and adapter, designed to maximize airflow, horsepower, and throttle response on the K-series platform.

The Skunk2 Racing Ultra Series Intake Manifold is engineered for high-performance applications, featuring a large plenum and optimized runner design that significantly improves airflow at higher RPMs. This makes it the perfect upgrade for naturally aspirated builds, as well as turbocharged or heavily modified setups looking to push more power.

Paired with the ZDX throttle body, originally from the Acura ZDX, this setup increases intake airflow thanks to its larger diameter compared to the factory Civic Si throttle body. The included adapter ensures proper fitment to the Skunk2 Ultra manifold, allowing for a clean and efficient installation without compatibility issues.

Together, this combination enhances throttle response, increases top-end power, and improves overall engine efficiency. It is especially effective when paired with supporting modifications such as headers, intake systems, upgraded fuel components, and ECU tuning.

Constructed from high-quality materials, the Skunk2 Ultra manifold is built for durability and consistent performance under demanding conditions. The ZDX throttle body adds OEM reliability while delivering the airflow benefits needed for serious performance gains.

Fitment is designed for the 2006–2011 Honda Civic Si (FA5/FG2 with K20Z3 engine). Professional installation and proper tuning are recommended to fully maximize the benefits of this upgrade.

If you’re building a high-performance Civic Si and want a proven intake setup that delivers real results, this Skunk2 Ultra manifold with ZDX throttle body combo is a top-tier choice.