How do I stop the psst noise!
 

Running a v2 sti has a baileys dump valve on it how do I change it back to the recirc? I have the recirc but when I put it on I seem to have an extra hole where does that go?

You will see a short pipe coming from the engine,this will have a bung in it,take out the bung and fit the pipe to the recirc valve