was on my way to subaru garage this morning, to have a rocker cover gasket changed. when half way there i pulled out of a junction, gave it some harsh acceleration then at half a bar boost it cut off like some restrictor so i limped to subaru and told them they say they havent touched anything to do with what i was describing. so i asked them to look and they told me it is possibly a sticky wastegate, is this terminal or new turbo time