Overview

This intake manifold plenum is for 4 cylinder engines when building your own intake manifold. This cast plenum features a unique modular symmetrical design that allows placement of the throttle body on either side of the engine. Carefully optimized design distributes airflow evenly to all 4 cylinders regardless of the loading conditions. The plenum has been generously sized to ensure maximum cylinder charge at high RPM. Each piece is cast, machined, inspected and packed all in the USA. Cast from a special self aging, self hardening alloy with especially strict requirements for chemical composition. Top of the line Japanese machining centers machine all major surfaces of the parts in one setup, ensuring perfect fit, finish, and maximum value.

Additional DIY Manifold Parts