Quote:
Originally Posted by 335i82108
that doesnt matter, b.c AT still holds boost just like MTs
and the psh sound that comes from evos is called a blow off valve. (not so sure if im right) but a blow off valve acts the same way as a DV but instead of recirlcing like a DV the boost goes to open atmosphere
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correct, BOV's release into the atmosphere creating that whoosh sound and DV's divert the air back into the system. there's no performance gains from either other than holding boost better than the stock plastic ones, so basically it's user preference.
and the chargepipe is the pipe that's connected to the intercooler piping and intake manifold and that's what either the DV's or BOV is connected to, our stock chargepipe is rubber so with higher boost they can bend and squeeze. all aftermarket pipes are either SS or aluminum.