GrimmSpeed 38mm External Wastegate Gasket - Universal WRX/STI Intake Manifolds Remove your dull OEM top

Remove your dull OEM top mount intercooler coupler and replace it with a PERRIN Coupler Kit and give your engine bay a touch of style

For those looking for take it to 11

1in (front) & -25 mm

Performance Disc:

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

GrimmSpeed 38mm External Wastegate Gasket - Universal WRX/STI Intake Manifolds Remove your dull OEM topFits 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!