Ok guys, sorry in advance if this has been covered 1000 times already but I tried reading for a couple hours and just couldn't find anything on it. So here's the deal, stock 02 baxr6t manual wen I give it curry, full boost comes on and then off the throttle I go, or as soon as a change gears a massive pssshhhhhhhh. Like a bloody 180sx.. I'm kinda embarresed lol. So I had a look aroun the bov and it seems completey stock and unmodufied,,, soo, I have a hunch that there may be a leak somewhere? Or, somethings not right cos I know these cars don't do that from stock maybe make more of a ssssssss tutututut(which is wat Im chasing) thanks for any help fellas much appreciated if you have any ideas as to wats happenin or how to fix it?? CHEERS Josh