just done this, i had a bailey DV fitted before but hate the tshhhhh chav sound! so i thought i would give the pigeon mod a try. so i blocked off the vac pipe from the DV with a bolt, and used a cut down broomstick handle (got wood? lol) for the pipe that the DV comes off.
the problem i have is, you can SLIGHTLY hear the "pigeon" noise.. but hardly at all. next to no sound at all in the car!
what could be causing this? as i know its normally very loud!
cheers, jamie