We present to you the 3x thicker GrimmSpeed TMIC Inlet Gaskets. Not only is this gasket three times thicker, it also contains an inner metal layer that will help prevent blow outs. The TMIC surface and the Y-Pipe Flanges never seem to truly mate to each other. That's where the 3x thicker inlet gasket's extra thickness comes in handy, creating a better seal for better protection against leaks.
Fits all 2002-2005 Subaru WRX, and 2004-2021 WRX STI.