GrimmSpeed 38mm External Wastegate Gasket - Universal WRX/STI Intake Manifolds The roto-molded housing is made

The roto-molded housing is made out of black cross-linked polyethylene

All components are ethanol compliant

In order to provide a system that looks as good on the outside as the technical advancements happening on the inside

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GrimmSpeed 38mm External Wastegate Gasket - Universal WRX/STI Intake Manifolds The roto-molded housing is madeFits Subaru WRX STI and other Subaru Platforms GrimmSpeed introduces their premium quality 38mm External Wastegate Gasket(EWG). This gasket is for use in any 38mm size EWG setup. When running an EWG, you need two of these gaskets, on for between the up pipe and wastegate and one for between the wastegate and dump tube. Made out of 304 Stainless Steel to assure you that you will not have to worry about gasket blowouts!