Zerg Industries Throttle Body Spacer is one of the most cost-effective and simple power modifications you can make. This 3/4" throttle body spacer is designed to fit in between your intake manifold and throttle body, creating a larger volume of air in the intake manifold and optimizing the air path to the cylinders.
Available in black, blue and red.
K-Series Civic Si 2006-2011 2.0