Nothing personal, but I have to question the post by racinmike.
Maybe Ive got a special case, but the only times Ive ever barked the turbo was at the end of a sledpull. My race tune hasn't ever barked the turbo at the race track, let alone on the street, and thats on the stock wastegate/boost valve combo. Only time I can ever remember it did on the street was when I added a bunch of timing and pulsewidth and hugely overdid it.