Skunk2 (372-05-0275) Thermal Intake Manifold Gasket for Honda D-Series Engine With the use of Skunk2 thermal gaskets, air intake temps are minimized which provides the your engine cooler air for combustion, and that means horsepower This and bypassing several heat sources can provide you up to 5 percent more power; Skunk2 Racing thermal intake manifold gaskets are perfect for your race, weekend warrior and street application Protects against heat soak and reduces the incoming air temperature before it reaches the cylinder head Reduces heat transfer into the intake manifold High Heat deflection