Hey, My brother bought a Blitz BOV for his GT4 awhile back and over easter he came home with his car,so naturally I asked him to take me out for a spin in it...and I noticed that the BOV wasn't working at all! He thought the flutter he was hearing was the BOV dumping (muppet, I know!). So I initally thought it was siezed; so I took it all apart, cleaned it and greased it with multipurpose grease. It worked fine for 2 days or so then stopped working. Having bought it off someone who said they were running it on a GT4 running 1.2Bar I assumed it could have had a harder spring in it...so I bought a standard spring from Blitz UK...tried that, and nothing! Still didn't dump!! I then resorted to taking it apart, cleaning it up again, using some multipurpose oil and cutting 3 coils off of the old spring, it now dumps but no where near as loud as it should and not cosistently (i.e. its a bit tempermental - sometimes it does, sometimes it doesnt) Anybody have any other ideas? What else can I try? Cheers.