Skunk2 Pro Series 94-01 Honda/Acura H22A/F20B Intake Manifold (Exluding Type SH)More than a decade ago, Skunk2s engineers revolutionized Honda performance by creating the first ever, high flow, cast aluminum intake manifold. Skunk2s Pro Series Intake Manifold for Hondas H series 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 sacrifice mid range