Any one ever tried one

Hi has any one ever tried one of these

http://www.ebay.co.uk/ulk/itm/191798591239

Where there any benefits or a waste of money

Read a couple of bits and pieces about this type of thing and they are mostly a waste of time and money. Al this does, as far as I can work out, is leak air into the inlet.

That's all it can do I'm sceptical how it could do anything at all never mind save fuel or add a bit of power probably another waste of money gimmick

lol, yea I had one on my old Pug 306. You fit it to the vac line, its supposed to pulse air into intake stream to create turbulence and produce a better burn. They make a right noise, as the air goes in it vibrated with a loud ticking/rasping noise, you fit a mini pipercross filter to the top of them to suppress the noise. I didnt see any benafits at all, I ended up locking it down as the noise was doing my head in.

Thanks rushy I won't be wasting my money on one of these then would drive me Mad a annoying noise
Thanks for clarifying that it's poop lol