Sikky Manufacturing - Honda K20Z3 Heat Shielding Intake Manifold Gasket (SM-TN-001)Fits the following vehicles as well as those with a K20Z3 engine swap: 20062011 Honda Civic Si 20072010 Acura CSX Type S About Thermalnator Heat Shield Gaskets Thermalnator is a unique high temperature shielding gasket which replaces the stock intake manifold gasket. Thermalnators cooling properties reduce heat by stopping metal to metal contact between the intake manifold and the engine block. By using a Thermalnator gasket, you will reduce the heat