[Briancanadiano]

So my car has a bad rattling noise like really loud embarrassing when decelerating from above 3000rpm, anything below 3000 rpm and there's no rattle, as soon as I go above the 3000 rpm it's a loud metallic noise buzzing kind of hard to explain. I know this is probably wastegate rattle but it's the only one I have at startup and all it's very low and not even noticeable. Will the jb4 g5 help with this high rpm deceleration rattle?