Increase the plenum volume by 1-liter in your Ultra Series Race intake manifold with our new billet aluminum plenum spacer. This spacer kit includes bolts and a gaskets to fit our Ultra Series Race intake manifold for either the B or K-series Ultra Series Race Intake Manifold Spacer; 1 Liter; Incl. Gaskets; For Use w/Ultra Race Manifold; Silver;.
