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Price: $42.25
5mm Phenolic Intake Manifold Spacer for Toyota Celica Corolla Matrix Pontiac Vibe WiLL VS Lotus Elise Exige 2-ElevenEngine code: 2ZZ-GEPhenolic inlet manifold gasket acts as a barrier stopping heat transferring from the engine block through into the inlet manifold. Stopping this heat transfer results in a cooler inlet charge temperature and in doing so increases engine power in much the same way an intercooler does, except this is able to benefit a turbo and non-turbo setup.Second picture: 2.0 16V ABF VW engine without phenolic heat shield.
Third picture: 2.0 16V ABF VW engine with phenolic heat shield.
Both pictures taken by heat camera.