Eli is right Andy,judging by the pic it looks like the thin black pipe coming from the back of the bov is being restricted by the cable tie,try loosing it up a bit,if still no joy give me a bell tomorrow on 0857721113 and you can take a look at how mine is set up
hard to tell, but that cable tie cud be bit tight? and if that not prob, can yours be adjusted in sound? and if none of these, any chance it cud be a fake, i dont know where you got it but there was fakes for sale on few ebay sites etc etc
I checked the tubes and they are not pinched. I can push the valve inside with my finger and it moves in and out. Bought it from Nengun. Got my last one there and it worked.
Go for a drive and still no sound from it.
Dave, I cant get up to your place until Thursday after lunch. Is that OK?
Slithertooth, yes I used a gasket on the intercooler.
I am sure it's something silly!
I do think it would be worth while hooking up with someone a similar product, and disassemble and reassemble it beside each other!
Best of luck man!
Dan