Ultra Series Race Side-Feed Intake Manifold Plenum Black - Honda / Acura B/D-Series

This is a Skunk2 factory replacement 3.5L Plenum part for the Ultra Race Side-Feed B & D Series Intake Manifolds; 307-05-9000, 307-05-9200, 307-05-9050. Features: • Removable Plenum in Silver 907-05-0060 or Black 907-05-0065 • 3.5L Plenum Volume • 90mm Throttle Body Flange - Std. 5.0L Ford Pattern • US Patent: D673977 Optional Billet Aluminum Plenum Spacers Available in 1L or 2L Sizes: • 907-05-9001 Ultra Race Plenum Spacer - 1L Silver • 907-05-9051 Ultra Race Plenum Spacer - 1L Black • 907-05-9002 Ultra Race Plenum Spacer - 2L Silver • 907-05-9052 Ultra Race Plenum Spacer - 2L Black