Subaru OE TMIC BOV Base Flange is designed for Synchrnoic DV use.
This flange is INCOMPATIBLE with the SB Series Blow Off Valves.
This flange will fit Pre 2008 WRX and STI TMIC and 2008+ STI only.
This flange is INCOMPATIBLE with 08+ WRX (non-STI) TMIC.
Please look at Product ID: SB001.7A for 08+ WRX.
WARNING: Cancer and Reproductive Harm