Hey I would start by checking all intercooler pipeing. If your hearing the "intake noise louder" that could be a charge pipe just about off..then you would hear the loud whoosh of the turbo...happened to me once when the stock charge pipe came off...next check ALL vac. lines...best way is to go from the boost selinoids and follow all color lines and make sure none of those (cheap) stock rubber fittings are spilt...they would still look connected but can be split around connection. Then I would check to see if the Mopar BOP(blow off plate)not BOV is tight to the turbo housing..if any air is passing through around it (between blue plate and silver valve or turbo housing) it would most deff. do this. But FIRST THING turn the key from off to ignition on NOT START 6 times (on,off,on,off ect.) and it will display the check engine code where the milage is...when you get the engine code post it up and we will know your prob...