SKUNK2 BLACK SERIES PRO SERIES INTAKE MANIFOLD HONDA D SERIESMore than a decade ago, Skunk2's engineers revolutionized Honda performance by creating the first ever, high flow, cast aluminum intake manifold. Skunk2s Pro Series Intake Manifold for most Honda SOHC D series engines features a larger plenum and oversized runners when compared to the OEM version for maximum horsepower and torque gains. Instead of producing a manifold with a significantly oversized plenum and excessively short runners that would