Recently had my truck bulletproofed and Ive been having this problem ever since, my truck would build lots of boost upwards to 35psi, engine sound would go quiet and not much go. Ive had the intercooler boot blow off 7 times now with stock tuning, street tune and the performance tune. Sent it in to get "fixed" figured the turbo needed cleaning so just took the chance for a 68mm Powermax drove around on stock settings but wanted to get rid of the EGR is gone CEL so tuned to street mode and had the suffocation problem again it was 22psi working fine. I guessed that the tune was not good for the new turbo, got the extreme x tune from Tony Wildman and it alot better just still suffocating 25psi did it I think??. Im looking for what the problem can be, its frustrating and Ive spent alot of money in the truck recently im not looking forward to a big problem, any help would be much appreciated! Thanks! I'll be back tomorrow night sorry if I can answer any questions, think I covered it all.