So my kkk turbo went on the fabia the other night, decided to upgrade to a Garrett GT1749VB pd150 turbo from darkside, got it all fitted sweet, but wen I'm driving and get into or near boost(not putting my put hard down as still running it in) ther is a really loud noise like air is leaking, had all pipes off and can't see any problem :/ ANY1 help??

post in the furby forum maybe? Get an answer quicker than in here