Haha dose pipes are pretty retarded, basically its just a pipe that comes off the front of your turbo (filter optional on some).
Its so when you dont run a blow off valve or recycle valve to your intake and you get that compressor surge we have been talking about you can have different sizes and lengths of dose pipe in order to change the length and pitch of your fluttery turbine surge noise.
You need an intercooler to be able to do it and you need to mount your air flow meter after the turbo instead of before to get rid of the ecu problems. Its retarded but i also reckon its pretty funny to watch someone dosing it up like a madman on the street. Alot of people link it to performance but its quite the opposite :)
|