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The Skunk2 Ultra Street plenum spacer increases plenum volume by 0.5 liter for Ultra Series Street manifolds on Honda and Acura engines, improving airflow tuning without replacing the manifold. Finished in silver, the billet aluminum kit includes bolts and gaskets and is made to fit Skunk2's Ultra Series Race intake manifold on B- and K-series engines for a straightforward, reversible volume increase.
Skunk2 Ultra Series Honda/Acura Silver Street Intake Manifold .5 Liter Spacer
