Hey guys maybe you could help with this problem. Hard to explain but when I hit boost and keep it on hard, sometimes I get a noise from underneath for a second and it restricts performance, and then it will push through and keep boosting. I was maybe thinking it could be an exhaust restriction? Here are the mods im running to give you an idea, Intercooler Injectors Tune 271RWKS @14PSi And I have a stock exhaust(which could be a problem) Thanks for the help.