2015 XLT 3.5
First post excuse me if someone has gone over this before. I have a 2015 3.5 that I recently started having the issue of a massive amount of boost loss and an awful sound at 4500rpm. Originally I thought maybe a turbo. I ended up replacing both turbos and the bypass solenoid. I have smoked and pressure tested system and haven’t found any leaks that way but for some reason at 4500 RPMs it’s the horrible sound and a massive amount of boost loss and powerloss. The truck has a cold air intake and a turbo smart Bov but is basically stock I just can’t seem to find out what the issue is. Any info you guys have that may help me out would be greatly appreciated. Thanks in advance.