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The Skunk2 Ultra Street plenum spacer increases intake plenum volume by 0.5 liter for Ultra Series Street manifolds on Honda and Acura engines, improving airflow tuning without replacing the manifold. Machined from billet aluminum, the spacer kit includes mounting bolts and gaskets and is intended to work with Skunk2's Ultra Series Race intake manifold on B- and K-series engines as a simple, reversible volume upgrade.
Skunk2 Ultra Series Honda/Acura Black Street Intake Manifold .5 Liter Spacer
