PowerGasket™ is an insulating gasket that radically reduces the heat transfer from the cylinder head to the intake manifold.

PowerGasket™ gives you up to 5% more power from your engine by reducing the temperature of the incoming air to your engine. This gives you cooler, denser air for more horsepower and performance from your engine.

For 2.5L H4 turbocharged engines that use Subaru intake manifold gasket #14035AA420, 14035AA421.