What do you call these things

[mb911]

I am doing the bitz racing conversion and now have completed the new air intak box but I need a rubber tube that connects to the throttle body and will then connect to my air filter box (coming soon). I was thinking of a turbo expansion rubber type thing just like the things turbos use to connect its plumbing. It does need to be at least 3 in ID up to 3 1/8 ID. Any help would be appreciated

[quaz]

Hey Ben I think you are looking for something like here: http://www.boostcontroller.com/index.php?category=34 . Just search the web for silicone boost tubes and you will probably find the size you are looking for. I pieced together a complete kit for my Volvo wagon at one point that way. There is some stretch to them, but not much. So you can probably get 1/4" more out of the diameter.