GrimmSpeed Blow Off Valve Flange Gasket - Subaru WRX 2002-2007 / STI 2004+

SKU: 020023


Subaru Intercooler BOV Gasket

OEM Subaru Top Mount Intercooler Gaskets can be one of the greatest sources of leaks in the intake system. GrimmSpeed has answered this with their 3x thicker Grimmspeed TMIC BOV Gasket. Not only is their gasket 3 times thicker, it also contains an inner metal layer that will help prevent blow outs. The extra thickness comes in handy, creating a better seal for better protection against leaks especially when the TMIC surface and BOV flange may not truly mate to each other.


  • 3x Thicker Than OEM Gasket.
  • Creates a better seal for better protection against leaks.
  • Contains an inner metal layer..


  • Rubber forms to bad mating surfaces.
  • Metal internal layer to prevent blow-outs.
  • No more Blow Off Valve Leaks!


  • 2002-2014 Subaru WRX
  • 2004-2021 Subaru WRX STI

What's in the box?

  • (1) Grimmspeed Intercooler BOV Gasket


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