Hi, does anyone have an awful noise coming from behind the dash, ie the crossover pipe, after changing the stock ford one with an upgraded one? Mountune in my case. It sounds ridiculous. Like an echo/grate noise lol. Get the revs to around 2000 and it just groans. No doubt the sound echoing inside the now metal pipe. Jeez I’m gonna’ have to get the Ford one back in! No loose bits etc etc I’ve had it checked. Just an awful awful noise. Even took off the ITG filter and put the standard airbox back on, still this terrible noise.