Sikky Manufacturing - VR38DETT Heat Shielding Intake Manifold Gasket (SM-TN-052A)Fits 2008 Nissan GTR R35. 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 of the air entering your engine, making up to 5% more power. Thermalnator gaskets allow the