[TurboWS6]

Its automatic so it doesn't need to have a blow off valve, its not optimal but it wont hurt anything not having it.

Blow off valve helps most on a manual car keeping the turbine rpm's up in between shifts by reducing the pressure and resistance on the compressor wheel so it can come back up to speed faster and make boost, also helps keep charge pipes from blowing off if the kit is not put together with T bolt clamps.

Autos and merkurs don't need one because the throttle body never shuts while shifting.