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Skunk2’s Ultra Series 2-liter plenum spacer is a billet aluminum spacer kit that increases plenum volume for Ultra Race intake manifolds on B- and K-series Honda/Acura engines. The kit ships with gaskets and hardware for direct integration with the Ultra Race manifold, letting shops add controlled volume without manifold modification. It’s intended for race-oriented Ultra Series setups where tidy fitment and OEM-style assembly are required.
Skunk2 Ultra Series Honda/Acura Silver RACE Intake Manifold 2 Liter Spacer (Inc Gasket & Hardware)
